Build JUnit with JDK 8 on Travis.
Build JUnit with JDK 8 on Travis.

We can now build JUnit with JDK 8, because #749 is fixed.

hansjoachim/junit,kobe73er/dUnit,freezhan/junit,freezhan/junit,powazny/junit4,y-kt/junit,panchenko/junit,UnimibSoftEngCourse1516/lab2-es3-f.spinardi,UnimibSoftEngCourse1516/lab2-es3-l.salvestrini,UnimibSoftEngCourse1516/lab2-es3-a.mosini,0359xiaodong/junit,UnimibSoftEngCourse1516/lab2-es3-s.renzo,stefanbirkner/junit,UnimibSoftEngCourse1516/lab2-es3-a.tundo,edwardmlyte/junit,baev/junit,UnimibSoftEngCourse1516/lab2-es3-f.giannini3,mekwin87/junit4,moinuddin14/junit,y-kt/junit,rwarren14/junit,dvberkel/junit,junit-team/junit,moinuddin14/junit,remus32/junit,ashleyfrieze/junit,UnimibSoftEngCourse1516/lab2-es3-m.scarpone,UnimibSoftEngCourse1516/lab2-es3-f.giannini3,junit-team/junit4,julien-sobczak/junit,UnimibSoftEngCourse1516/lab2-es3-l.salvestrini,kobe73er/dUnit,UnimibSoftEngCourse1516/lab2-es3-f.cirelli1,GeeChao/junit,UnimibSoftEngCourse1516/lab2-es3-m.vella6,songfj/junit,y-kt/junit,junit-team/junit4,UnimibSoftEngCourse1516/lab2-es3-a.tundo,paulduffin/junit,schauder/junit,alohageck0/junit,hhariri/junit,slezier/junit,paulduffin/junit,UnimibSoftEngCourse1516/lab2-es3-o.sertori,kobe73er/dUnit,UnimibSoftEngCourse1516/lab2-es3-m.polonioli,avandeursen/junit,AxelMonroyX/junit4,GeeChao/junit,feisuo/junit,janocat/junit,eamonnmcmanus/junit,hhariri/junit,UnimibSoftEngCourse1516/lab2-es3-f.cirelli1,baev/junit,kobe73er/MyUnit,witcxc/junit,kcooney/junit,UnimibSoftEngCourse1516/lab2-es3-s.ravetta,openhardnudd/junit,mekwin87/junit4,stefanbirkner/junit,yusuke/junit,UnimibSoftEngCourse1516/lab2-es3-l.salvestrini,UnimibSoftEngCourse1516/lab2-es3-s.ravetta,remus32/junit,kobe73er/MyUnit,UnimibSoftEngCourse1516/lab2-es3-m.scarpone,hhariri/junit,marcphilipp/junit,JoaquinSiabra/junit,marcphilipp/junit,onesfreedom/junit,UnimibSoftEngCourse1516/lab2-es3-s.renzo,Clairebi/JUnit-Clone,Siddartha07/junit,UnimibSoftEngCourse1516/lab2-es3-f.spinardi,julien-sobczak/junit,UnimibSoftEngCourse1516/lab2-es3-o.sertori,quentin9696/junit,chrisvest/junit,alb-i986/junit,stefanbirkner/junit,remus32/junit,UnimibSoftEngCourse1516/lab2-es3-i.pigazzini,panchenko/junit,rwarren14/junit,easyMan-zzy/junit,UnimibSoftEngCourse1516/lab2-es3-f.giannini3,chrisvest/junit,jordancheah/junit,flomotlik/junit,laercioferracini/junit,Thothius/junit,laercioferracini/junit,avandeursen/junit,janocat/junit,mekwin87/junit4,elijah513/junit,panchenko/junit,rwarren14/junit,MingxuanChen/junit,MichaelJY91/junit,schauder/junit,easyMan-zzy/junit,yusuke/junit,feisuo/junit,adko-pl/junit,junit-team/junit,UnimibSoftEngCourse1516/lab2-es3-s.renzo,UnimibSoftEngCourse1516/lab2-es3-f.spinardi,openhardnudd/junit,junit-team/junit,jhfjhfj1/junit,elijah513/junit,UnimibSoftEngCourse1516/lab2-es3-m.scarpone,smayoorans/junit,quentin9696/junit,VikingDen/junit,sposam/junit,mekwin87/junit4,UnimibSoftEngCourse1516/lab2-es3-s.ravetta,powazny/junit4,UnimibSoftEngCourse1516/lab2-es3-m.vella6,slezier/junit,cherryleer/junit,kcooney/junit,dvberkel/junit,UnimibSoftEngCourse1516/lab2-es3-i.pigazzini,mnk/junit,eamonnmcmanus/junit,smayoorans/junit,slezier/junit,laercioferracini/junit,UnimibSoftEngCourse1516/lab2-es3-a.tundo,sposam/junit,yusuke/junit,0359xiaodong/junit,UnimibSoftEngCourse1516/lab2-es3-a.mosini,1234-/junit,marcphilipp/junit,junit-team/junit4,Siddartha07/junit,cherryleer/junit,UnimibSoftEngCourse1516/lab2-es3-f.cirelli1,openhardnudd/junit,janocat/junit,flomotlik/junit,alb-i986/junit,dvberkel/junit,easyMan-zzy/junit,0359xiaodong/junit,Thothius/junit,Clairebi/JUnit-Clone,schauder/junit,elijah513/junit,GeeChao/junit,UnimibSoftEngCourse1516/lab2-es3-o.sertori,AxelMonroyX/junit4,edwardmlyte/junit,jordancheah/junit,kcooney/junit,JoaquinSiabra/junit,witcxc/junit,MichaelJY91/junit,paulduffin/junit,alohageck0/junit,quentin9696/junit,VikingDen/junit,Siddartha07/junit,UnimibSoftEngCourse1516/lab2-es3-e.nani1,hansjoachim/junit,UnimibSoftEngCourse1516/lab2-es3-e.nani1,1234-/junit,JoaquinSiabra/junit,freezhan/junit,ashleyfrieze/junit,Clairebi/JUnit-Clone,adko-pl/junit,MichaelJY91/junit,songfj/junit,UnimibSoftEngCourse1516/lab2-es3-m.vella6,VikingDen/junit,UnimibSoftEngCourse1516/lab2-es3-m.polonioli,eamonnmcmanus/junit,jhfjhfj1/junit,UnimibSoftEngCourse1516/lab2-es3-a.mosini,moinuddin14/junit,MingxuanChen/junit,1234-/junit,baev/junit,avandeursen/junit,cherryleer/junit,kobe73er/MyUnit,onesfreedom/junit,sposam/junit,julien-sobczak/junit,flomotlik/junit,MingxuanChen/junit,ashleyfrieze/junit,UnimibSoftEngCourse1516/lab2-es3-e.nani1,smayoorans/junit,powazny/junit4,alb-i986/junit,AxelMonroyX/junit4,onesfreedom/junit,alohageck0/junit,edwardmlyte/junit,hansjoachim/junit,jordancheah/junit,mnk/junit,songfj/junit,Thothius/junit,UnimibSoftEngCourse1516/lab2-es3-m.polonioli,mnk/junit,adko-pl/junit,chrisvest/junit,UnimibSoftEngCourse1516/lab2-es3-i.pigazzini,witcxc/junit,feisuo/junit,jhfjhfj1/junit