Manage commons-logging and log4j as provided, include slf4j adapters for tests.
Manage commons-logging and log4j as provided, include slf4j adapters for tests.

 By means of this *all* logging should go to JUL.  By defining slf4j-api as compile
 scope we mark it as the one to be used, while by declaring it optional we make
 sure it is not packaged in the resulting HPI.

pjanouse/jenkins,rsandell/jenkins,vjuranek/jenkins,SebastienGllmt/jenkins,v1v/jenkins,wuwen5/jenkins,ikedam/jenkins,vjuranek/jenkins,christ66/jenkins,andresrc/jenkins,daniel-beck/jenkins,fbelzunc/jenkins,kohsuke/hudson,ikedam/jenkins,daniel-beck/jenkins,paulwellnerbou/jenkins,paulmillar/jenkins,luoqii/jenkins,aldaris/jenkins,sathiya-mit/jenkins,paulmillar/jenkins,tfennelly/jenkins,fbelzunc/jenkins,vvv444/jenkins,AustinKwang/jenkins,FarmGeek4Life/jenkins,MichaelPranovich/jenkins_sc,bkmeneguello/jenkins,ikedam/jenkins,vvv444/jenkins,pjanouse/jenkins,MarkEWaite/jenkins,lilyJi/jenkins,varmenise/jenkins,bkmeneguello/jenkins,kohsuke/hudson,Ykus/jenkins,wuwen5/jenkins,patbos/jenkins,pjanouse/jenkins,soenter/jenkins,msrb/jenkins,jhoblitt/jenkins,jglick/jenkins,olivergondza/jenkins,kzantow/jenkins,DanielWeber/jenkins,amruthsoft9/Jenkis,hplatou/jenkins,hplatou/jenkins,Jochen-A-Fuerbacher/jenkins,NehemiahMi/jenkins,viqueen/jenkins,lilyJi/jenkins,jenkinsci/jenkins,bpzhang/jenkins,bkmeneguello/jenkins,kzantow/jenkins,dennisjlee/jenkins,ErikVerheul/jenkins,Jochen-A-Fuerbacher/jenkins,olivergondza/jenkins,v1v/jenkins,arunsingh/jenkins,rsandell/jenkins,stephenc/jenkins,kzantow/jenkins,MichaelPranovich/jenkins_sc,damianszczepanik/jenkins,dennisjlee/jenkins,Jimilian/jenkins,jenkinsci/jenkins,FarmGeek4Life/jenkins,soenter/jenkins,protazy/jenkins,1and1/jenkins,jenkinsci/jenkins,bpzhang/jenkins,christ66/jenkins,jk47/jenkins,mdonohue/jenkins,patbos/jenkins,dennisjlee/jenkins,dariver/jenkins,azweb76/jenkins,Jimilian/jenkins,patbos/jenkins,batmat/jenkins,jenkinsci/jenkins,andresrc/jenkins,wuwen5/jenkins,wangyikai/jenkins,1and1/jenkins,protazy/jenkins,elkingtonmcb/jenkins,NehemiahMi/jenkins,protazy/jenkins,azweb76/jenkins,Jochen-A-Fuerbacher/jenkins,huybrechts/hudson,ns163/jenkins,lordofthejars/jenkins,Vlatombe/jenkins,MarkEWaite/jenkins,jk47/jenkins,fbelzunc/jenkins,amruthsoft9/Jenkis,dariver/jenkins,dennisjlee/jenkins,FarmGeek4Life/jenkins,alvarolobato/jenkins,jglick/jenkins,daniel-beck/jenkins,wangyikai/jenkins,MarkEWaite/jenkins,jpbriend/jenkins,protazy/jenkins,elkingtonmcb/jenkins,guoxu0514/jenkins,kohsuke/hudson,Jimilian/jenkins,bkmeneguello/jenkins,bkmeneguello/jenkins,NehemiahMi/jenkins,tfennelly/jenkins,andresrc/jenkins,rashmikanta-1984/jenkins,daniel-beck/jenkins,dennisjlee/jenkins,1and1/jenkins,arunsingh/jenkins,ydubreuil/jenkins,stephenc/jenkins,soenter/jenkins,gusreiber/jenkins,hplatou/jenkins,stephenc/jenkins,guoxu0514/jenkins,MichaelPranovich/jenkins_sc,bpzhang/jenkins,batmat/jenkins,mcanthony/jenkins,rlugojr/jenkins,gitaccountforprashant/gittest,csimons/jenkins,alvarolobato/jenkins,ndeloof/jenkins,paulwellnerbou/jenkins,ndeloof/jenkins,Vlatombe/jenkins,jhoblitt/jenkins,patbos/jenkins,rashmikanta-1984/jenkins,luoqii/jenkins,NehemiahMi/jenkins,fbelzunc/jenkins,batmat/jenkins,mdonohue/jenkins,hplatou/jenkins,soenter/jenkins,kzantow/jenkins,ajshastri/jenkins,tfennelly/jenkins,mrooney/jenkins,recena/jenkins,Vlatombe/jenkins,v1v/jenkins,MichaelPranovich/jenkins_sc,MarkEWaite/jenkins,soenter/jenkins,DanielWeber/jenkins,bkmeneguello/jenkins,jpederzolli/jenkins-1,lordofthejars/jenkins,v1v/jenkins,olivergondza/jenkins,Vlatombe/jenkins,oleg-nenashev/jenkins,escoem/jenkins,wuwen5/jenkins,AustinKwang/jenkins,ndeloof/jenkins,arunsingh/jenkins,jpbriend/jenkins,varmenise/jenkins,escoem/jenkins,jenkinsci/jenkins,ikedam/jenkins,jpbriend/jenkins,lordofthejars/jenkins,DanielWeber/jenkins,mcanthony/jenkins,vvv444/jenkins,luoqii/jenkins,FarmGeek4Life/jenkins,gusreiber/jenkins,ydubreuil/jenkins,ChrisA89/jenkins,SebastienGllmt/jenkins,tangkun75/jenkins,olivergondza/jenkins,vjuranek/jenkins,msrb/jenkins,hplatou/jenkins,rsandell/jenkins,tangkun75/jenkins,tfennelly/jenkins,ndeloof/jenkins,elkingtonmcb/jenkins,tfennelly/jenkins,paulwellnerbou/jenkins,samatdav/jenkins,recena/jenkins,pselle/jenkins,azweb76/jenkins,evernat/jenkins,lilyJi/jenkins,wuwen5/jenkins,soenter/jenkins,jpederzolli/jenkins-1,patbos/jenkins,escoem/jenkins,andresrc/jenkins,pselle/jenkins,patbos/jenkins,DanielWeber/jenkins,dariver/jenkins,lordofthejars/jenkins,paulmillar/jenkins,arunsingh/jenkins,gusreiber/jenkins,lordofthejars/jenkins,daniel-beck/jenkins,tastatur/jenkins,dennisjlee/jenkins,azweb76/jenkins,wuwen5/jenkins,gusreiber/jenkins,samatdav/jenkins,stephenc/jenkins,vjuranek/jenkins,ndeloof/jenkins,wangyikai/jenkins,ChrisA89/jenkins,godfath3r/jenkins,mdonohue/jenkins,rashmikanta-1984/jenkins,jhoblitt/jenkins,olivergondza/jenkins,oleg-nenashev/jenkins,samatdav/jenkins,damianszczepanik/jenkins,Jimilian/jenkins,tangkun75/jenkins,dariver/jenkins,FarmGeek4Life/jenkins,elkingtonmcb/jenkins,mdonohue/jenkins,rlugojr/jenkins,ydubreuil/jenkins,olivergondza/jenkins,SebastienGllmt/jenkins,ChrisA89/jenkins,paulwellnerbou/jenkins,ajshastri/jenkins,evernat/jenkins,SebastienGllmt/jenkins,mrooney/jenkins,samatdav/jenkins,gusreiber/jenkins,protazy/jenkins,samatdav/jenkins,FarmGeek4Life/jenkins,1and1/jenkins,aldaris/jenkins,vjuranek/jenkins,ydubreuil/jenkins,mdonohue/jenkins,ndeloof/jenkins,stephenc/jenkins,varmenise/jenkins,guoxu0514/jenkins,sathiya-mit/jenkins,jglick/jenkins,rsandell/jenkins,alvarolobato/jenkins,tangkun75/jenkins,ikedam/jenkins,ydubreuil/jenkins,ChrisA89/jenkins,lindzh/jenkins,jenkinsci/jenkins,mrooney/jenkins,azweb76/jenkins,jpederzolli/jenkins-1,amuniz/jenkins,ns163/jenkins,paulmillar/jenkins,aldaris/jenkins,jglick/jenkins,protazy/jenkins,escoem/jenkins,mcanthony/jenkins,ErikVerheul/jenkins,varmenise/jenkins,rashmikanta-1984/jenkins,viqueen/jenkins,csimons/jenkins,jpbriend/jenkins,huybrechts/hudson,ErikVerheul/jenkins,hplatou/jenkins,tastatur/jenkins,rsandell/jenkins,pjanouse/jenkins,paulwellnerbou/jenkins,viqueen/jenkins,mcanthony/jenkins,huybrechts/hudson,alvarolobato/jenkins,ChrisA89/jenkins,amuniz/jenkins,godfath3r/jenkins,wangyikai/jenkins,AustinKwang/jenkins,amruthsoft9/Jenkis,mrooney/jenkins,lindzh/jenkins,aldaris/jenkins,batmat/jenkins,Ykus/jenkins,jk47/jenkins,aldaris/jenkins,lindzh/jenkins,AustinKwang/jenkins,lilyJi/jenkins,SebastienGllmt/jenkins,godfath3r/jenkins,christ66/jenkins,tastatur/jenkins,pjanouse/jenkins,akshayabd/jenkins,MichaelPranovich/jenkins_sc,rashmikanta-1984/jenkins,evernat/jenkins,DanielWeber/jenkins,ajshastri/jenkins,pjanouse/jenkins,recena/jenkins,huybrechts/hudson,dariver/jenkins,1and1/jenkins,amruthsoft9/Jenkis,kohsuke/hudson,mrooney/jenkins,gitaccountforprashant/gittest,gitaccountforprashant/gittest,elkingtonmcb/jenkins,duzifang/my-jenkins,fbelzunc/jenkins,ErikVerheul/jenkins,fbelzunc/jenkins,wangyikai/jenkins,vvv444/jenkins,kohsuke/hudson,DanielWeber/jenkins,amuniz/jenkins,varmenise/jenkins,Ykus/jenkins,luoqii/jenkins,samatdav/jenkins,rsandell/jenkins,mrooney/jenkins,paulmillar/jenkins,lilyJi/jenkins,csimons/jenkins,dennisjlee/jenkins,MarkEWaite/jenkins,ydubreuil/jenkins,ns163/jenkins,msrb/jenkins,csimons/jenkins,escoem/jenkins,bpzhang/jenkins,bpzhang/jenkins,MichaelPranovich/jenkins_sc,stephenc/jenkins,pselle/jenkins,tfennelly/jenkins,lordofthejars/jenkins,christ66/jenkins,jpederzolli/jenkins-1,christ66/jenkins,stephenc/jenkins,mrooney/jenkins,ajshastri/jenkins,Vlatombe/jenkins,wangyikai/jenkins,lindzh/jenkins,huybrechts/hudson,csimons/jenkins,amuniz/jenkins,daniel-beck/jenkins,oleg-nenashev/jenkins,godfath3r/jenkins,MarkEWaite/jenkins,recena/jenkins,duzifang/my-jenkins,jk47/jenkins,jk47/jenkins,christ66/jenkins,evernat/jenkins,guoxu0514/jenkins,lindzh/jenkins,elkingtonmcb/jenkins,kohsuke/hudson,jpederzolli/jenkins-1,varmenise/jenkins,ErikVerheul/jenkins,alvarolobato/jenkins,kzantow/jenkins,soenter/jenkins,kzantow/jenkins,paulwellnerbou/jenkins,akshayabd/jenkins,mcanthony/jenkins,msrb/jenkins,jglick/jenkins,ns163/jenkins,jglick/jenkins,pjanouse/jenkins,jpbriend/jenkins,azweb76/jenkins,tastatur/jenkins,Jimilian/jenkins,amruthsoft9/Jenkis,ikedam/jenkins,luoqii/jenkins,pselle/jenkins,evernat/jenkins,tangkun75/jenkins,dariver/jenkins,duzifang/my-jenkins,godfath3r/jenkins,vvv444/jenkins,ikedam/jenkins,daniel-beck/jenkins,AustinKwang/jenkins,olivergondza/jenkins,andresrc/jenkins,v1v/jenkins,wangyikai/jenkins,1and1/jenkins,akshayabd/jenkins,amuniz/jenkins,varmenise/jenkins,pselle/jenkins,hplatou/jenkins,1and1/jenkins,godfath3r/jenkins,amuniz/jenkins,MarkEWaite/jenkins,oleg-nenashev/jenkins,Jochen-A-Fuerbacher/jenkins,ydubreuil/jenkins,lordofthejars/jenkins,christ66/jenkins,DanielWeber/jenkins,gitaccountforprashant/gittest,rlugojr/jenkins,tastatur/jenkins,ajshastri/jenkins,ikedam/jenkins,arunsingh/jenkins,batmat/jenkins,vvv444/jenkins,damianszczepanik/jenkins,akshayabd/jenkins,paulwellnerbou/jenkins,gitaccountforprashant/gittest,viqueen/jenkins,guoxu0514/jenkins,viqueen/jenkins,sathiya-mit/jenkins,ajshastri/jenkins,recena/jenkins,huybrechts/hudson,evernat/jenkins,ndeloof/jenkins,rashmikanta-1984/jenkins,jpbriend/jenkins,lilyJi/jenkins,aldaris/jenkins,amruthsoft9/Jenkis,akshayabd/jenkins,rashmikanta-1984/jenkins,Ykus/jenkins,oleg-nenashev/jenkins,rlugojr/jenkins,sathiya-mit/jenkins,ajshastri/jenkins,gitaccountforprashant/gittest,sathiya-mit/jenkins,mcanthony/jenkins,Jimilian/jenkins,ErikVerheul/jenkins,vjuranek/jenkins,escoem/jenkins,ns163/jenkins,guoxu0514/jenkins,jglick/jenkins,arunsingh/jenkins,tfennelly/jenkins,tangkun75/jenkins,sathiya-mit/jenkins,oleg-nenashev/jenkins,bpzhang/jenkins,batmat/jenkins,jenkinsci/jenkins,luoqii/jenkins,alvarolobato/jenkins,AustinKwang/jenkins,kohsuke/hudson,patbos/jenkins,gusreiber/jenkins,viqueen/jenkins,jpederzolli/jenkins-1,andresrc/jenkins,NehemiahMi/jenkins,recena/jenkins,mdonohue/jenkins,kzantow/jenkins,mdonohue/jenkins,azweb76/jenkins,recena/jenkins,kohsuke/hudson,fbelzunc/jenkins,lindzh/jenkins,bkmeneguello/jenkins,aldaris/jenkins,tangkun75/jenkins,jhoblitt/jenkins,akshayabd/jenkins,batmat/jenkins,AustinKwang/jenkins,rlugojr/jenkins,jpederzolli/jenkins-1,rsandell/jenkins,Ykus/jenkins,lindzh/jenkins,msrb/jenkins,pselle/jenkins,duzifang/my-jenkins,rsandell/jenkins,damianszczepanik/jenkins,FarmGeek4Life/jenkins,escoem/jenkins,guoxu0514/jenkins,v1v/jenkins,jk47/jenkins,MarkEWaite/jenkins,rlugojr/jenkins,Vlatombe/jenkins,Ykus/jenkins,bpzhang/jenkins,gusreiber/jenkins,damianszczepanik/jenkins,ns163/jenkins,damianszczepanik/jenkins,jhoblitt/jenkins,SebastienGllmt/jenkins,ErikVerheul/jenkins,tastatur/jenkins,protazy/jenkins,csimons/jenkins,pselle/jenkins,ns163/jenkins,damianszczepanik/jenkins,evernat/jenkins,Jochen-A-Fuerbacher/jenkins,ChrisA89/jenkins,ChrisA89/jenkins,Jochen-A-Fuerbacher/jenkins,SebastienGllmt/jenkins,mcanthony/jenkins,daniel-beck/jenkins,samatdav/jenkins,Ykus/jenkins,vjuranek/jenkins,Vlatombe/jenkins,paulmillar/jenkins,sathiya-mit/jenkins,duzifang/my-jenkins,msrb/jenkins,Jimilian/jenkins,vvv444/jenkins,arunsingh/jenkins,lilyJi/jenkins,rlugojr/jenkins,csimons/jenkins,elkingtonmcb/jenkins,NehemiahMi/jenkins,amuniz/jenkins,NehemiahMi/jenkins,viqueen/jenkins,MichaelPranovich/jenkins_sc,andresrc/jenkins,duzifang/my-jenkins,v1v/jenkins,damianszczepanik/jenkins,oleg-nenashev/jenkins,Jochen-A-Fuerbacher/jenkins,jhoblitt/jenkins,gitaccountforprashant/gittest,jhoblitt/jenkins,dariver/jenkins,wuwen5/jenkins,duzifang/my-jenkins,jpbriend/jenkins,luoqii/jenkins,paulmillar/jenkins,akshayabd/jenkins,jenkinsci/jenkins,jk47/jenkins,tastatur/jenkins,amruthsoft9/Jenkis,msrb/jenkins,godfath3r/jenkins,huybrechts/hudson,alvarolobato/jenkins