added docclean target and replaced make calls by variables
added docclean target and replaced make calls by variables

thomaseichinger/RIOT,alignan/RIOT,adrianghc/RIOT,mfrey/RIOT,RBartz/RIOT,herrfz/RIOT-old,rakendrathapa/RIOT,jferreir/RIOT,kaspar030/RIOT,l3nko/RIOT,gbarnett/RIOT,latsku/RIOT,Lotterleben/RIOT,plushvoxel/RIOT,spium/IoT-RIOT,luciotorre/RIOT,asanka-code/RIOT,zhuoshuguo/RIOT,yogo1212/RIOT,rousselk/RIOT,A-Paul/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,A-Paul/RIOT,thiagohd/RIOT,herrfz/RIOT,patkan/RIOT,locicontrols/RIOT,centurysys/RIOT,zhuoshuguo/RIOT,DipSwitch/RIOT,latsku/RIOT,DipSwitch/RIOT,fnack/RIOT,rousselk/RIOT,BytesGalore/PetersRIOT,robixnai/RIOT,kaspar030/RIOT,gebart/RIOT,shady33/RIOT,ks156/RIOT,thomaseichinger/RIOT,Lexandro92/RIOT-CoAP,dailab/RIOT,bartfaizoltan/RIOT,jhollister/RIOT,kaleb-himes/RIOT,Yonezawa-T2/RIOT,tdautc19841202/RIOT,neumodisch/RIOT,BytesGalore/RIOT,rfuentess/RIOT,RubikonAlpha/RIOT,toonst/RIOT,basilfx/RIOT,kaspar030/RIOT,kaspar030/RIOT,dkm/RIOT,luciotorre/RIOT,kb2ma/RIOT,lazytech-org/RIOT,Lexandro92/RIOT-CoAP,fnack/RIOT,alignan/RIOT,lazytech-org/RIOT,abp719/RIOT,brettswann/RIOT,toonst/RIOT,RBartz/RIOT,altairpearl/RIOT,avmelnikoff/RIOT,avmelnikoff/RIOT,MarkXYang/RIOT,sumanpanchal/RIOT,yogo1212/RIOT,gbarnett/RIOT,marcosalm/RIOT,MohmadAyman/RIOT,1blankz7/RIOT,watr-li/RIOT,rajma996/RIOT,malosek/RIOT,MonsterCode8000/RIOT,aeneby/RIOT,locicontrols/RIOT,LudwigKnuepfer/RIOT,shady33/RIOT,PSHIVANI/Riot-Code,mziegert/RIOT,openkosmosorg/RIOT,tdautc19841202/RIOT,luciotorre/RIOT,benoit-canet/RIOT,herrfz/RIOT-old,abkam07/RIOT,MohmadAyman/RIOT,EmuxEvans/RIOT,Yonezawa-T2/RIOT,daniel-k/RIOT,brettswann/RIOT,changbiao/RIOT,nsol-nmsu/RIOT,gautric/RIOT,kbumsik/RIOT,daniel-k/RIOT,BytesGalore/PetersRIOT,latsku/RIOT,FrancescoErmini/RIOT,OlegHahm/RIOT,BytesGalore/RIOT,rfswarm2/RIOT,mtausig/RIOT,rajma996/RIOT,herrfz/RIOT,wentaoshang/RIOT,d00616/RIOT,koenning/RIOT,jasonatran/RIOT,thiagohd/RIOT,lebrush/RIOT,RBartz/RIOT,ant9000/RIOT,RBartz/RIOT,A-Paul/RIOT,l3nko/RIOT,plushvoxel/RIOT,kaleb-himes/RIOT,haoyangyu/RIOT,jasonatran/RIOT,mziegert/RIOT,kushalsingh007/RIOT,beurdouche/RIOT,attdona/RIOT,sumanpanchal/RIOT,patkan/RIOT,toonst/RIOT,automote/RIOT,neumodisch/RIOT,attdona/RIOT,luciotorre/RIOT,gebart/RIOT,koenning/RIOT,spium/IoT-RIOT,stevenj/RIOT,patkan/RIOT,beurdouche/RIOT,herrfz/RIOT-old,abp719/RIOT,hamilton-mote/RIOT-OS,OTAkeys/RIOT,thiagohd/RIOT,fnack/RIOT,automote/RIOT,altairpearl/RIOT,BytesGalore/PetersRIOT,MonsterCode8000/RIOT,attdona/RIOT,ks156/RIOT,JensErdmann/RIOT,chris-wood/RIOT,FrancescoErmini/RIOT,jremmert-phytec-iot/RIOT,jfischer-phytec-iot/RIOT,PSHIVANI/Riot-Code,openkosmosorg/RIOT,tfar/RIOT,sgso/RIOT,Ell-i/RIOT,OTAkeys/RIOT,khhhh/RIOT,ant9000/RIOT,rfswarm2/RIOT,RubikonAlpha/RIOT,centurysys/RIOT,zhuoshuguo/RIOT,1blankz7/RIOT,latsku/RIOT,thiagohd/RIOT,basilfx/RIOT,shady33/RIOT,arvindpdmn/RIOT,dailab/RIOT,chris-wood/RIOT,LudwigOrtmann/RIOT,khhhh/RIOT,x3ro/RIOT,abkam07/RIOT,msolters/RIOT,openkosmosorg/RIOT,BytesGalore/PetersRIOT,arvindpdmn/RIOT,adrianghc/RIOT,locicontrols/RIOT,1blankz7/RIOT,gebart/RIOT,Darredevil/RIOT,Lotterleben/RIOT,Ell-i/RIOT,openkosmosorg/RIOT,jbeyerstedt/RIOT-OTA-update,kerneltask/RIOT,jbeyerstedt/RIOT-OTA-update,RIOT-OS/RIOT,jbeyerstedt/RIOT-OTA-update,daniel-k/RIOT,stevenj/RIOT,miri64/RIOT,thomaseichinger/RIOT,JensErdmann/RIOT,khhhh/RIOT,gbarnett/RIOT,emmanuelsearch/RIOT,phiros/RIOT,emmanuelsearch/RIOT,shady33/RIOT,adjih/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,emmanuelsearch/RIOT,mfrey/RIOT,haoyangyu/RIOT,ntrtrung/RIOT,alex1818/RIOT,backenklee/RIOT,tfar/RIOT,Osblouf/RIOT,neumodisch/RIOT,fnack/RIOT,AnonMall/RIOT,Osblouf/RIOT,hamilton-mote/RIOT-OS,changbiao/RIOT,rfswarm/RIOT,spium/IoT-RIOT,MohmadAyman/RIOT,jfischer-phytec-iot/RIOT,phiros/RIOT,beurdouche/RIOT,RubikonAlpha/RIOT,brettswann/RIOT,AnonMall/RIOT,marcosalm/RIOT,lazytech-org/RIOT,msolters/RIOT,authmillenon/RIOT,alex1818/RIOT,herrfz/RIOT,Yonezawa-T2/RIOT,roberthartung/RIOT,brettswann/RIOT,luciotorre/RIOT,thomaseichinger/RIOT,marcosalm/RIOT,khhhh/RIOT,kerneltask/RIOT,thiagohd/RIOT,plushvoxel/RIOT,Yonezawa-T2/RIOT,centurysys/RIOT,msolters/RIOT,kushalsingh007/RIOT,wentaoshang/RIOT,locicontrols/RIOT,rakendrathapa/RIOT,cladmi/RIOT,PSHIVANI/Riot-Code,lebrush/RIOT,mziegert/RIOT,alignan/RIOT,shady33/RIOT,rajma996/RIOT,MonsterCode8000/RIOT,gautric/RIOT,mfrey/RIOT,dailab/RIOT,shady33/RIOT,miri64/RIOT,sgso/RIOT,RubikonAlpha/RIOT,cladmi/RIOT,kb2ma/RIOT,spium/IoT-RIOT,malosek/RIOT,rfswarm/RIOT,basilfx/RIOT,gebart/RIOT,biboc/RIOT,AnonMall/RIOT,josephnoir/RIOT,spium/IoT-RIOT,wentaoshang/RIOT,TobiasFredersdorf/RIOT,JensErdmann/RIOT,d00616/RIOT,x3ro/RIOT,sgso/RIOT,changbiao/RIOT,bartfaizoltan/RIOT,MohmadAyman/RIOT,kaleb-himes/RIOT,jasonatran/RIOT,mtausig/RIOT,kYc0o/RIOT,Hyungsin/RIOT-OS,dailab/RIOT,neiljay/RIOT,phiros/RIOT,zhuoshuguo/RIOT,MarkXYang/RIOT,ros2/ros2_embedded_riot,authmillenon/RIOT,tdautc19841202/RIOT,d00616/RIOT,l3nko/RIOT,jferreir/RIOT,kushalsingh007/RIOT,toonst/RIOT,FrancescoErmini/RIOT,neumodisch/RIOT,kbumsik/RIOT,benoit-canet/RIOT,1blankz7/RIOT,tfar/RIOT,asanka-code/RIOT,OlegHahm/RIOT,RBartz/RIOT,ThanhVic/RIOT,josephnoir/RIOT,lebrush/RIOT,LudwigKnuepfer/RIOT,backenklee/RIOT,immesys/RiSyn,jferreir/RIOT,binarylemon/RIOT,LudwigKnuepfer/RIOT,changbiao/RIOT,spium/IoT-RIOT,marcosalm/RIOT,ks156/RIOT,msolters/RIOT,alex1818/RIOT,latsku/RIOT,backenklee/RIOT,dhruvvyas90/RIOT,l3nko/RIOT,1blankz7/RIOT,MarkXYang/RIOT,chris-wood/RIOT,adjih/RIOT,neiljay/RIOT,thomaseichinger/RIOT,LudwigOrtmann/RIOT,gbarnett/RIOT,gautric/RIOT,nsol-nmsu/RIOT,hamilton-mote/RIOT-OS,latsku/RIOT,dailab/RIOT,mfrey/RIOT,MarkXYang/RIOT,malosek/RIOT,ant9000/RIOT,alignan/RIOT,rfuentess/RIOT,TobiasFredersdorf/RIOT,dkm/RIOT,authmillenon/RIOT,locicontrols/RIOT,robixnai/RIOT,ntrtrung/RIOT,jfischer-phytec-iot/RIOT,Yonezawa-T2/RIOT,miri64/RIOT,BytesGalore/RIOT,marcosalm/RIOT,rfswarm/RIOT,robixnai/RIOT,rajma996/RIOT,backenklee/RIOT,mziegert/RIOT,adjih/RIOT,haoyangyu/RIOT,abp719/RIOT,phiros/RIOT,BytesGalore/PetersRIOT,AnonMall/RIOT,lebrush/RIOT,dkm/RIOT,watr-li/RIOT,Hyungsin/RIOT-OS,ThanhVic/RIOT,rakendrathapa/RIOT,yogo1212/RIOT,ros2/ros2_embedded_riot,foss-for-synopsys-dwc-arc-processors/RIOT,kerneltask/RIOT,Josar/RIOT,roberthartung/RIOT,DipSwitch/RIOT,kYc0o/RIOT,attdona/RIOT,watr-li/RIOT,adrianghc/RIOT,luciotorre/RIOT,patkan/RIOT,Darredevil/RIOT,herrfz/RIOT-old,centurysys/RIOT,rfswarm/RIOT,RIOT-OS/RIOT,RIOT-OS/RIOT,koenning/RIOT,immesys/RiSyn,locicontrols/RIOT,arvindpdmn/RIOT,lazytech-org/RIOT,daniel-k/RIOT,katezilla/RIOT,DipSwitch/RIOT,watr-li/RIOT,syin2/RIOT,Josar/RIOT,BytesGalore/RIOT,immesys/RiSyn,centurysys/RIOT,beurdouche/RIOT,neiljay/RIOT,Lexandro92/RIOT-CoAP,robixnai/RIOT,automote/RIOT,l3nko/RIOT,cladmi/RIOT,ximus/RIOT,RubikonAlpha/RIOT,wentaoshang/RIOT,Osblouf/RIOT,jhollister/RIOT,mfrey/RIOT,robixnai/RIOT,sumanpanchal/RIOT,Hyungsin/RIOT-OS,syin2/RIOT,malosek/RIOT,rfswarm2/RIOT,jhollister/RIOT,dhruvvyas90/RIOT,ximus/RIOT,rfuentess/RIOT,jferreir/RIOT,MohmadAyman/RIOT,Osblouf/RIOT,aeneby/RIOT,jbeyerstedt/RIOT-OTA-update,biboc/RIOT,ThanhVic/RIOT,yogo1212/RIOT,stevenj/RIOT,daniel-k/RIOT,zhuoshuguo/RIOT,ntrtrung/RIOT,brettswann/RIOT,haoyangyu/RIOT,gebart/RIOT,alex1818/RIOT,ros2/ros2_embedded_riot,authmillenon/RIOT,kbumsik/RIOT,asanka-code/RIOT,marcosalm/RIOT,RubikonAlpha/RIOT,dhruvvyas90/RIOT,josephnoir/RIOT,asanka-code/RIOT,jasonatran/RIOT,rakendrathapa/RIOT,mziegert/RIOT,tdautc19841202/RIOT,katezilla/RIOT,LudwigKnuepfer/RIOT,smlng/RIOT,miri64/RIOT,nsol-nmsu/RIOT,ximus/RIOT,alex1818/RIOT,miri64/RIOT,kushalsingh007/RIOT,ros2/ros2_embedded_riot,locicontrols/RIOT,herrfz/RIOT,hamilton-mote/RIOT-OS,avmelnikoff/RIOT,malosek/RIOT,wentaoshang/RIOT,lazytech-org/RIOT,nsol-nmsu/RIOT,BytesGalore/PetersRIOT,MonsterCode8000/RIOT,binarylemon/RIOT,ntrtrung/RIOT,OTAkeys/RIOT,aeneby/RIOT,x3ro/RIOT,abp719/RIOT,ThanhVic/RIOT,msolters/RIOT,ntrtrung/RIOT,binarylemon/RIOT,OTAkeys/RIOT,Darredevil/RIOT,Lexandro92/RIOT-CoAP,mziegert/RIOT,gautric/RIOT,lebrush/RIOT,backenklee/RIOT,l3nko/RIOT,TobiasFredersdorf/RIOT,Ell-i/RIOT,stevenj/RIOT,jhollister/RIOT,AnonMall/RIOT,emmanuelsearch/RIOT,rfswarm2/RIOT,DipSwitch/RIOT,watr-li/RIOT,abkam07/RIOT,Yonezawa-T2/RIOT,tfar/RIOT,phiros/RIOT,ThanhVic/RIOT,wentaoshang/RIOT,jbeyerstedt/RIOT-OTA-update,ximus/RIOT,abkam07/RIOT,Osblouf/RIOT,syin2/RIOT,jremmert-phytec-iot/RIOT,koenning/RIOT,adjih/RIOT,MohmadAyman/RIOT,plushvoxel/RIOT,benoit-canet/RIOT,authmillenon/RIOT,EmuxEvans/RIOT,herrfz/RIOT,kbumsik/RIOT,TobiasFredersdorf/RIOT,kushalsingh007/RIOT,Lexandro92/RIOT-CoAP,adrianghc/RIOT,JensErdmann/RIOT,kerneltask/RIOT,josephnoir/RIOT,chris-wood/RIOT,smlng/RIOT,fnack/RIOT,tdautc19841202/RIOT,zhuoshuguo/RIOT,jferreir/RIOT,roberthartung/RIOT,Lotterleben/RIOT,rfswarm/RIOT,robixnai/RIOT,RIOT-OS/RIOT,neumodisch/RIOT,haoyangyu/RIOT,x3ro/RIOT,daniel-k/RIOT,patkan/RIOT,immesys/RiSyn,rfswarm2/RIOT,automote/RIOT,benoit-canet/RIOT,yogo1212/RIOT,msolters/RIOT,basilfx/RIOT,ros2/ros2_embedded_riot,A-Paul/RIOT,emmanuelsearch/RIOT,ros2/ros2_embedded_riot,FrancescoErmini/RIOT,kb2ma/RIOT,arvindpdmn/RIOT,MarkXYang/RIOT,centurysys/RIOT,jferreir/RIOT,EmuxEvans/RIOT,rfswarm/RIOT,openkosmosorg/RIOT,rfuentess/RIOT,ant9000/RIOT,LudwigOrtmann/RIOT,bartfaizoltan/RIOT,abp719/RIOT,asanka-code/RIOT,kaspar030/RIOT,RBartz/RIOT,patkan/RIOT,Ell-i/RIOT,benoit-canet/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,khhhh/RIOT,automote/RIOT,khhhh/RIOT,jremmert-phytec-iot/RIOT,Josar/RIOT,Josar/RIOT,Lotterleben/RIOT,Darredevil/RIOT,Hyungsin/RIOT-OS,kaleb-himes/RIOT,EmuxEvans/RIOT,kb2ma/RIOT,TobiasFredersdorf/RIOT,ks156/RIOT,rousselk/RIOT,LudwigKnuepfer/RIOT,benoit-canet/RIOT,koenning/RIOT,automote/RIOT,syin2/RIOT,d00616/RIOT,sumanpanchal/RIOT,altairpearl/RIOT,plushvoxel/RIOT,ximus/RIOT,dhruvvyas90/RIOT,fnack/RIOT,immesys/RiSyn,rfuentess/RIOT,biboc/RIOT,MonsterCode8000/RIOT,ThanhVic/RIOT,Darredevil/RIOT,ros2/ros2_embedded_riot,kYc0o/RIOT,JensErdmann/RIOT,biboc/RIOT,d00616/RIOT,thiagohd/RIOT,gautric/RIOT,Lexandro92/RIOT-CoAP,Lotterleben/RIOT,A-Paul/RIOT,mtausig/RIOT,rakendrathapa/RIOT,herrfz/RIOT-old,bartfaizoltan/RIOT,kerneltask/RIOT,neiljay/RIOT,stevenj/RIOT,kb2ma/RIOT,abkam07/RIOT,cladmi/RIOT,Darredevil/RIOT,ks156/RIOT,chris-wood/RIOT,herrfz/RIOT,smlng/RIOT,gbarnett/RIOT,emmanuelsearch/RIOT,bartfaizoltan/RIOT,basilfx/RIOT,PSHIVANI/Riot-Code,ant9000/RIOT,neiljay/RIOT,attdona/RIOT,beurdouche/RIOT,jhollister/RIOT,FrancescoErmini/RIOT,openkosmosorg/RIOT,binarylemon/RIOT,chris-wood/RIOT,jremmert-phytec-iot/RIOT,LudwigOrtmann/RIOT,jremmert-phytec-iot/RIOT,watr-li/RIOT,sumanpanchal/RIOT,alignan/RIOT,1blankz7/RIOT,rousselk/RIOT,RIOT-OS/RIOT,rajma996/RIOT,gbarnett/RIOT,Lotterleben/RIOT,mtausig/RIOT,katezilla/RIOT,neumodisch/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,arvindpdmn/RIOT,yogo1212/RIOT,OTAkeys/RIOT,abkam07/RIOT,FrancescoErmini/RIOT,cladmi/RIOT,OlegHahm/RIOT,lebrush/RIOT,attdona/RIOT,jfischer-phytec-iot/RIOT,Ell-i/RIOT,rajma996/RIOT,katezilla/RIOT,sgso/RIOT,dkm/RIOT,altairpearl/RIOT,aeneby/RIOT,kushalsingh007/RIOT,rousselk/RIOT,LudwigOrtmann/RIOT,rakendrathapa/RIOT,ximus/RIOT,stevenj/RIOT,avmelnikoff/RIOT,tdautc19841202/RIOT,kaleb-himes/RIOT,adjih/RIOT,BytesGalore/PetersRIOT,nsol-nmsu/RIOT,syin2/RIOT,EmuxEvans/RIOT,authmillenon/RIOT,Lotterleben/RIOT,tfar/RIOT,jfischer-phytec-iot/RIOT,haoyangyu/RIOT,AnonMall/RIOT,DipSwitch/RIOT,jasonatran/RIOT,PSHIVANI/Riot-Code,JensErdmann/RIOT,jhollister/RIOT,kYc0o/RIOT,x3ro/RIOT,ntrtrung/RIOT,roberthartung/RIOT,kbumsik/RIOT,koenning/RIOT,LudwigOrtmann/RIOT,binarylemon/RIOT,aeneby/RIOT,OlegHahm/RIOT,avmelnikoff/RIOT,asanka-code/RIOT,roberthartung/RIOT,josephnoir/RIOT,phiros/RIOT,hamilton-mote/RIOT-OS,Josar/RIOT,BytesGalore/RIOT,malosek/RIOT,jremmert-phytec-iot/RIOT,altairpearl/RIOT,rousselk/RIOT,dhruvvyas90/RIOT,altairpearl/RIOT,EmuxEvans/RIOT,Hyungsin/RIOT-OS,mtausig/RIOT,smlng/RIOT,bartfaizoltan/RIOT,adrianghc/RIOT,sgso/RIOT,binarylemon/RIOT,PSHIVANI/Riot-Code,sumanpanchal/RIOT,Osblouf/RIOT,rfswarm2/RIOT,dhruvvyas90/RIOT,sgso/RIOT,changbiao/RIOT,d00616/RIOT,changbiao/RIOT,kYc0o/RIOT,OlegHahm/RIOT,immesys/RiSyn,dkm/RIOT,smlng/RIOT,arvindpdmn/RIOT,katezilla/RIOT,MarkXYang/RIOT,MonsterCode8000/RIOT,biboc/RIOT,toonst/RIOT,brettswann/RIOT,abp719/RIOT,alex1818/RIOT