bump dependency - clean-css to ~3.1
bump dependency - clean-css to ~3.1

aeharding/cdnjs,fredericksilva/cdnjs,camelotceo/cdnjs,RobLoach/cdnjs,camelotceo/cdnjs,dhowe/cdnjs,AlicanC/cdnjs,kirbyfan64/cdnjs,Sneezry/cdnjs,koggdal/cdnjs,cluo/cdnjs,yukinying/cdnjs,dhenson02/cdnjs,matteofigus/cdnjs,hibrahimsafak/cdnjs,artch/cdnjs,sitic/cdnjs,kristoferjoseph/cdnjs,ericelliott/cdnjs,CosmicWebServices/cdnjs,emmansun/cdnjs,icco/cdnjs,underyx/cdnjs,Ryuno-Ki/cdnjs,noraesae/cdnjs,urish/cdnjs,mathiasrw/cdnjs,MMore/cdnjs,ljharb/cdnjs,jessepollak/cdnjs,ripple0328/cdnjs,sujonvidia/cdnjs,LSleutsky/cdnjs,bragma/cdnjs,vfonic/cdnjs,matteofigus/cdnjs,urish/cdnjs,xymostech/cdnjs,fatso83/cdnjs,LSleutsky/cdnjs,ripple0328/cdnjs,AlicanC/cdnjs,ErikSchierboom/cdnjs,francescoagati/cdnjs,LSleutsky/cdnjs,jessepollak/cdnjs,iros/cdnjs,Rich-Harris/cdnjs,francescoagati/cdnjs,ematsusaka/cdnjs,Ryuno-Ki/cdnjs,thejsj/cdnjs,DaAwesomeP/cdnjs,jamzgoodguy/cdnjs,MMore/cdnjs,rteasdale/cdnjs,vdurmont/cdnjs,tresni/cdnjs,wenzhixin/cdnjs,sujonvidia/cdnjs,fbender/cdnjs,calvinf/cdnjs,gereon/cdnjs,matteofigus/cdnjs,idleberg/cdnjs,bragma/cdnjs,urish/cdnjs,thejsj/cdnjs,aeharding/cdnjs,khasinski/cdnjs,peteygao/cdnjs,qooxdoo/cdnjs,nagyist/OpenF2-cdnjs,svenanders/cdnjs,Rich-Harris/cdnjs,cluo/cdnjs,hibrahimsafak/cdnjs,kirbyfan64/cdnjs,gereon/cdnjs,thejsj/cdnjs,xymostech/cdnjs,ljharb/cdnjs,JacquesMarais/cdnjs,dominic/cdnjs,binaek89/cdnjs,nagyist/OpenF2-cdnjs,algolia/cdnjs,camelotceo/cdnjs,tkirda/cdnjs,arasmussen/cdnjs,ripple0328/cdnjs,vdurmont/cdnjs,mzdani/cdnjs,shallaa/cdnjs,aashish24/cdnjs,matteofigus/cdnjs,stuartpb/cdnjs,eduardo-costa/cdnjs,hibrahimsafak/cdnjs,yogeshsaroya/cdnjs,ramda/cdnjs,CrossEye/cdnjs,mzdani/cdnjs,francescoagati/cdnjs,AlicanC/cdnjs,wenzhixin/cdnjs,DaAwesomeP/cdnjs,JacquesMarais/cdnjs,peteygao/cdnjs,dominicrico/cdnjs,LaurensRietveld/cdnjs,aeharding/cdnjs,chrillep/cdnjs,idleberg/cdnjs,nagyist/OpenF2-cdnjs,kristoferjoseph/cdnjs,idleberg/cdnjs,nareshs435/cdnjs,binaek89/cdnjs,LSleutsky/cdnjs,zhangbg/cdnjs,r3x/cdnjs,pcarrier/cdnjs,schoren/cdnjs,gereon/cdnjs,francescoagati/cdnjs,icco/cdnjs,Ryuno-Ki/cdnjs,CosmicWebServices/cdnjs,neveldo/cdnjs,chrillep/cdnjs,svenanders/cdnjs,idleberg/cdnjs,jackdoyle/cdnjs,andyinabox/cdnjs,cluo/cdnjs,HealthIndicators/cdnjs,fatso83/cdnjs,aeharding/cdnjs,vfonic/cdnjs,GaryChamberlain/cdnjs,ZDroid/cdnjs,gokuale/cdnjs,fatso83/cdnjs,underyx/cdnjs,aeharding/cdnjs,F2X/cdnjs,RizkyAdiSaputra/cdnjs,aashish24/cdnjs,hpneo/cdnjs,vdurmont/cdnjs,mzdani/cdnjs,ErikSchierboom/cdnjs,ramda/cdnjs,LaurensRietveld/cdnjs,icco/cdnjs,joeylakay/cdnjs,shallaa/cdnjs,abbychau/cdnjs,cluo/cdnjs,codfish/cdnjs,iros/cdnjs,jozefizso/cdnjs,sitic/cdnjs,dominicrico/cdnjs,CosmicWebServices/cdnjs,jamzgoodguy/cdnjs,ramda/cdnjs,cluo/cdnjs,mgoldsborough/cdnjs,chrisdavies/cdnjs,GaryChamberlain/cdnjs,jamzgoodguy/cdnjs,RizkyAdiSaputra/cdnjs,pcarrier/cdnjs,dhowe/cdnjs,raszi/cdnjs,calvinf/cdnjs,jackdoyle/cdnjs,senekis/cdnjs,francescoagati/cdnjs,tkirda/cdnjs,icco/cdnjs,CrossEye/cdnjs,barkinet/cdnjs,CosmicWebServices/cdnjs,paleozogt/cdnjs,pzp1997/cdnjs,ruo91/cdnjs,tambien/cdnjs,billybonz1/cdnjs,Rich-Harris/cdnjs,zhengyongbo/cdnjs,Ryuno-Ki/cdnjs,gaearon/cdnjs,svenanders/cdnjs,algolia/cdnjs,svenanders/cdnjs,jamzgoodguy/cdnjs,viskin/cdnjs,LaurensRietveld/cdnjs,dhenson02/cdnjs,matteofigus/cdnjs,AlicanC/cdnjs,fredericksilva/cdnjs,schoren/cdnjs,viskin/cdnjs,nareshs435/cdnjs,dominic/cdnjs,freak3dot/cdnjs,tmorin/cdnjs,maxklenk/cdnjs,viskin/cdnjs,joeylakay/cdnjs,paleozogt/cdnjs,AlicanC/cdnjs,ematsusaka/cdnjs,gokuale/cdnjs,fatso83/cdnjs,vdurmont/cdnjs,tambien/cdnjs,stuartpb/cdnjs,ericelliott/cdnjs,luhad/cdnjs,mgoldsborough/cdnjs,jozefizso/cdnjs,freak3dot/cdnjs,nagyist/OpenF2-cdnjs,maxklenk/cdnjs,kirbyfan64/cdnjs,ramda/cdnjs,senekis/cdnjs,hibrahimsafak/cdnjs,billybonz1/cdnjs,dbeckwith/cdnjs,gereon/cdnjs,AlexisArce/cdnjs,chrisdavies/cdnjs,jozefizso/cdnjs,bsquochoaidownloadfolders/cdnjs,viskin/cdnjs,viskin/cdnjs,gereon/cdnjs,jozefizso/cdnjs,svenanders/cdnjs,idleberg/cdnjs,arasmussen/cdnjs,fbender/cdnjs,RizkyAdiSaputra/cdnjs,ruo91/cdnjs,peteygao/cdnjs,Nadeermalangadan/cdnjs,ruo91/cdnjs,rigdern/cdnjs,luhad/cdnjs,dbeckwith/cdnjs,qooxdoo/cdnjs,pazguille/cdnjs,Nadeermalangadan/cdnjs,xymostech/cdnjs,CrossEye/cdnjs,codfish/cdnjs,gaearon/cdnjs,yogeshsaroya/cdnjs,jamzgoodguy/cdnjs,senekis/cdnjs,dhenson02/cdnjs,tmorin/cdnjs,khasinski/cdnjs,ruo91/cdnjs,JacquesMarais/cdnjs,bragma/cdnjs,jozefizso/cdnjs,pzp1997/cdnjs,kirbyfan64/cdnjs,icco/cdnjs,vdurmont/cdnjs,neveldo/cdnjs,underyx/cdnjs,bsquochoaidownloadfolders/cdnjs,hibrahimsafak/cdnjs,CosmicWebServices/cdnjs,r3x/cdnjs,camelotceo/cdnjs,ripple0328/cdnjs,ErikSchierboom/cdnjs,emmansun/cdnjs,camelotceo/cdnjs,JacquesMarais/cdnjs,zhengyongbo/cdnjs,eduardo-costa/cdnjs,Ryuno-Ki/cdnjs,coupang/cdnjs,senekis/cdnjs,mathiasrw/cdnjs,ripple0328/cdnjs,mzdani/cdnjs,thesandlord/cdnjs,kirbyfan64/cdnjs,abbychau/cdnjs,tresni/cdnjs,fatso83/cdnjs,coupang/cdnjs,dhenson02/cdnjs,zhangbg/cdnjs,koggdal/cdnjs,Sneezry/cdnjs,thejsj/cdnjs,CrossEye/cdnjs,RobLoach/cdnjs,raszi/cdnjs,ruo91/cdnjs,Rich-Harris/cdnjs,xymostech/cdnjs,urish/cdnjs,mzdani/cdnjs,HealthIndicators/cdnjs,hpneo/cdnjs,F2X/cdnjs,RizkyAdiSaputra/cdnjs,noraesae/cdnjs,artch/cdnjs,CrossEye/cdnjs,ZDroid/cdnjs,yukinying/cdnjs,underyx/cdnjs,nagyist/OpenF2-cdnjs,thejsj/cdnjs,rigdern/cdnjs,bragma/cdnjs,LSleutsky/cdnjs,rteasdale/cdnjs,ramda/cdnjs,andyinabox/cdnjs,xymostech/cdnjs,bragma/cdnjs,Rich-Harris/cdnjs,pazguille/cdnjs,AlexisArce/cdnjs,underyx/cdnjs,RizkyAdiSaputra/cdnjs,thesandlord/cdnjs,barkinet/cdnjs,JacquesMarais/cdnjs