Adding generics to uses of ArrayList on homepage example code.
Adding generics to uses of ArrayList on homepage example code.

Closes #1084

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