TravisCI: Enable pip caching
TravisCI: Enable pip caching

RJ722/coala,sagark123/coala,RJ722/coala,damngamerz/coala,NiklasMM/coala,Shade5/coala,SanketDG/coala,CruiseDevice/coala,nemaniarjun/coala,shreyans800755/coala,Asalle/coala,jayvdb/coala,Asalle/coala,refeed/coala,coala-analyzer/coala,kartikeys98/coala,NiklasMM/coala,incorrectusername/coala,arjunsinghy96/coala,arush0311/coala,refeed/coala,rimacone/testing2,Shade5/coala,Shade5/coala,impmihai/coala,Asnelchristian/coala,rimacone/testing2,sagark123/coala,refeed/coala,jayvdb/coala,netman92/coala,MariosPanag/coala,meetmangukiya/coala,Asnelchristian/coala,aptrishu/coala,nemaniarjun/coala,damngamerz/coala,SanketDG/coala,Nosferatul/coala,yashLadha/coala,Balaji2198/coala,Nosferatul/coala,karansingh1559/coala,arjunsinghy96/coala,yashtrivedi96/coala,impmihai/coala,sagark123/coala,arjunsinghy96/coala,aptrishu/coala,yashLadha/coala,Balaji2198/coala,netman92/coala,CruiseDevice/coala,JohnS-01/coala,arush0311/coala,Balaji2198/coala,kartikeys98/coala,netman92/coala,ayushin78/coala,JohnS-01/coala,MariosPanag/coala,rimacone/testing2,JohnS-01/coala,aptrishu/coala,jayvdb/coala,nemaniarjun/coala,meetmangukiya/coala,kartikeys98/coala,Asalle/coala,incorrectusername/coala,yashLadha/coala,yashtrivedi96/coala,arush0311/coala,coala/coala,CruiseDevice/coala,Nosferatul/coala,ayushin78/coala,yashtrivedi96/coala,karansingh1559/coala,karansingh1559/coala,shreyans800755/coala,shreyans800755/coala,RJ722/coala,ayushin78/coala,impmihai/coala,MariosPanag/coala,SanketDG/coala,coala/coala,coala/coala,Asnelchristian/coala,damngamerz/coala,coala-analyzer/coala,NiklasMM/coala,meetmangukiya/coala,coala-analyzer/coala,incorrectusername/coala