Run groovy related tests in travis
Run groovy related tests in travis

Summary:
We want to run the groovy tests in CI, so we install groovy in travis
and set GROOVY_HOME appropriately.

Test-plan: Look at the travis output, check that
GroovyLibraryIntegrationTest and GroovyBuckConfigTest PASS
rather than ASSUME
Closes https://github.com/facebook/buck/pull/564

Reviewed By: sdwilsh

fb-gh-sync-id: 6155fd4

sdwilsh/buck,mikekap/buck,facebook/buck,shs96c/buck,vine/buck,nguyentruongtho/buck,grumpyjames/buck,LegNeato/buck,kageiit/buck,rmaz/buck,brettwooldridge/buck,shybovycha/buck,vschs007/buck,robbertvanginkel/buck,OkBuilds/buck,bocon13/buck,rowillia/buck,vschs007/buck,daedric/buck,janicduplessis/buck,grumpyjames/buck,marcinkwiatkowski/buck,shybovycha/buck,zpao/buck,bocon13/buck,liuyang-li/buck,rmaz/buck,bocon13/buck,k21/buck,romanoid/buck,mogers/buck,illicitonion/buck,rmaz/buck,Distrotech/buck,JoelMarcey/buck,SeleniumHQ/buck,illicitonion/buck,janicduplessis/buck,mogers/buck,romanoid/buck,marcinkwiatkowski/buck,shybovycha/buck,bocon13/buck,ilya-klyuchnikov/buck,marcinkwiatkowski/buck,shs96c/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,mogers/buck,rowillia/buck,raviagarwal7/buck,ilya-klyuchnikov/buck,ilya-klyuchnikov/buck,LegNeato/buck,liuyang-li/buck,Addepar/buck,raviagarwal7/buck,ilya-klyuchnikov/buck,Addepar/buck,brettwooldridge/buck,facebook/buck,zhan-xiong/buck,marcinkwiatkowski/buck,zhan-xiong/buck,illicitonion/buck,LegNeato/buck,shybovycha/buck,marcinkwiatkowski/buck,sdwilsh/buck,romanoid/buck,sdwilsh/buck,brettwooldridge/buck,robbertvanginkel/buck,shybovycha/buck,Addepar/buck,davido/buck,sdwilsh/buck,raviagarwal7/buck,mogers/buck,vschs007/buck,OkBuilds/buck,k21/buck,romanoid/buck,mikekap/buck,zpao/buck,Addepar/buck,mogers/buck,zpao/buck,OkBuilds/buck,vschs007/buck,SeleniumHQ/buck,LegNeato/buck,romanoid/buck,facebook/buck,raviagarwal7/buck,JoelMarcey/buck,sdwilsh/buck,kageiit/buck,shybovycha/buck,JoelMarcey/buck,vine/buck,bocon13/buck,romanoid/buck,SeleniumHQ/buck,SeleniumHQ/buck,darkforestzero/buck,Dominator008/buck,Distrotech/buck,marcinkwiatkowski/buck,k21/buck,rmaz/buck,daedric/buck,davido/buck,illicitonion/buck,nguyentruongtho/buck,davido/buck,shybovycha/buck,clonetwin26/buck,sdwilsh/buck,Addepar/buck,brettwooldridge/buck,shs96c/buck,grumpyjames/buck,davido/buck,JoelMarcey/buck,justinmuller/buck,bocon13/buck,Addepar/buck,vine/buck,LegNeato/buck,davido/buck,dsyang/buck,daedric/buck,Distrotech/buck,mikekap/buck,brettwooldridge/buck,dsyang/buck,sdwilsh/buck,mogers/buck,illicitonion/buck,justinmuller/buck,Distrotech/buck,dsyang/buck,Addepar/buck,nguyentruongtho/buck,darkforestzero/buck,robbertvanginkel/buck,rowillia/buck,davido/buck,brettwooldridge/buck,LegNeato/buck,k21/buck,illicitonion/buck,Addepar/buck,OkBuilds/buck,Dominator008/buck,k21/buck,kageiit/buck,sdwilsh/buck,Dominator008/buck,liuyang-li/buck,janicduplessis/buck,SeleniumHQ/buck,OkBuilds/buck,grumpyjames/buck,nguyentruongtho/buck,robbertvanginkel/buck,zhan-xiong/buck,rowillia/buck,dsyang/buck,mogers/buck,bocon13/buck,raviagarwal7/buck,darkforestzero/buck,brettwooldridge/buck,janicduplessis/buck,robbertvanginkel/buck,rowillia/buck,robbertvanginkel/buck,janicduplessis/buck,sdwilsh/buck,zhan-xiong/buck,mogers/buck,k21/buck,grumpyjames/buck,rowillia/buck,dsyang/buck,rmaz/buck,rmaz/buck,ilya-klyuchnikov/buck,clonetwin26/buck,JoelMarcey/buck,bocon13/buck,SeleniumHQ/buck,darkforestzero/buck,illicitonion/buck,justinmuller/buck,clonetwin26/buck,shs96c/buck,JoelMarcey/buck,JoelMarcey/buck,mikekap/buck,daedric/buck,Distrotech/buck,rmaz/buck,dsyang/buck,Addepar/buck,ilya-klyuchnikov/buck,liuyang-li/buck,vschs007/buck,davido/buck,mikekap/buck,janicduplessis/buck,grumpyjames/buck,Addepar/buck,OkBuilds/buck,vschs007/buck,ilya-klyuchnikov/buck,shs96c/buck,shs96c/buck,robbertvanginkel/buck,ilya-klyuchnikov/buck,nguyentruongtho/buck,raviagarwal7/buck,shs96c/buck,illicitonion/buck,daedric/buck,brettwooldridge/buck,darkforestzero/buck,robbertvanginkel/buck,darkforestzero/buck,liuyang-li/buck,JoelMarcey/buck,JoelMarcey/buck,Dominator008/buck,brettwooldridge/buck,janicduplessis/buck,dsyang/buck,justinmuller/buck,kageiit/buck,robbertvanginkel/buck,OkBuilds/buck,Dominator008/buck,zhan-xiong/buck,shs96c/buck,bocon13/buck,clonetwin26/buck,romanoid/buck,kageiit/buck,Dominator008/buck,facebook/buck,facebook/buck,rmaz/buck,shybovycha/buck,zhan-xiong/buck,vschs007/buck,liuyang-li/buck,raviagarwal7/buck,marcinkwiatkowski/buck,raviagarwal7/buck,romanoid/buck,davido/buck,marcinkwiatkowski/buck,SeleniumHQ/buck,Dominator008/buck,liuyang-li/buck,ilya-klyuchnikov/buck,raviagarwal7/buck,justinmuller/buck,clonetwin26/buck,facebook/buck,brettwooldridge/buck,dsyang/buck,marcinkwiatkowski/buck,daedric/buck,nguyentruongtho/buck,mikekap/buck,dsyang/buck,LegNeato/buck,mogers/buck,shybovycha/buck,LegNeato/buck,facebook/buck,Distrotech/buck,darkforestzero/buck,darkforestzero/buck,k21/buck,brettwooldridge/buck,rowillia/buck,k21/buck,illicitonion/buck,grumpyjames/buck,vine/buck,zhan-xiong/buck,Dominator008/buck,k21/buck,SeleniumHQ/buck,daedric/buck,daedric/buck,LegNeato/buck,zpao/buck,davido/buck,nguyentruongtho/buck,vschs007/buck,JoelMarcey/buck,marcinkwiatkowski/buck,dsyang/buck,raviagarwal7/buck,rowillia/buck,shybovycha/buck,LegNeato/buck,daedric/buck,darkforestzero/buck,shybovycha/buck,clonetwin26/buck,marcinkwiatkowski/buck,zhan-xiong/buck,liuyang-li/buck,liuyang-li/buck,liuyang-li/buck,LegNeato/buck,sdwilsh/buck,shs96c/buck,darkforestzero/buck,SeleniumHQ/buck,clonetwin26/buck,sdwilsh/buck,Distrotech/buck,marcinkwiatkowski/buck,dsyang/buck,mikekap/buck,sdwilsh/buck,zhan-xiong/buck,Addepar/buck,robbertvanginkel/buck,bocon13/buck,zpao/buck,k21/buck,illicitonion/buck,vine/buck,zpao/buck,Addepar/buck,clonetwin26/buck,vine/buck,clonetwin26/buck,Distrotech/buck,OkBuilds/buck,raviagarwal7/buck,SeleniumHQ/buck,k21/buck,justinmuller/buck,daedric/buck,shybovycha/buck,OkBuilds/buck,janicduplessis/buck,romanoid/buck,Dominator008/buck,rmaz/buck,kageiit/buck,robbertvanginkel/buck,raviagarwal7/buck,vine/buck,vine/buck,LegNeato/buck,shs96c/buck,OkBuilds/buck,shs96c/buck,rmaz/buck,dsyang/buck,justinmuller/buck,mikekap/buck,davido/buck,LegNeato/buck,grumpyjames/buck,rowillia/buck,JoelMarcey/buck,marcinkwiatkowski/buck,shs96c/buck,bocon13/buck,romanoid/buck,OkBuilds/buck,bocon13/buck,rmaz/buck,clonetwin26/buck,romanoid/buck,daedric/buck,raviagarwal7/buck,robbertvanginkel/buck,sdwilsh/buck,shs96c/buck,vschs007/buck,romanoid/buck,zhan-xiong/buck,robbertvanginkel/buck,janicduplessis/buck,vine/buck,clonetwin26/buck,zhan-xiong/buck,rowillia/buck,justinmuller/buck,daedric/buck,clonetwin26/buck,grumpyjames/buck,SeleniumHQ/buck,ilya-klyuchnikov/buck,vine/buck,Distrotech/buck,vschs007/buck,liuyang-li/buck,Addepar/buck,vschs007/buck,mogers/buck,OkBuilds/buck,rmaz/buck,OkBuilds/buck,Dominator008/buck,janicduplessis/buck,mikekap/buck,mikekap/buck,Dominator008/buck,davido/buck,janicduplessis/buck,davido/buck,vschs007/buck,k21/buck,mogers/buck,davido/buck,Dominator008/buck,JoelMarcey/buck,janicduplessis/buck,rmaz/buck,Distrotech/buck,justinmuller/buck,zpao/buck,SeleniumHQ/buck,kageiit/buck,grumpyjames/buck,brettwooldridge/buck,brettwooldridge/buck,darkforestzero/buck,zhan-xiong/buck,dsyang/buck,justinmuller/buck,shybovycha/buck,darkforestzero/buck,illicitonion/buck,darkforestzero/buck,vine/buck,JoelMarcey/buck,justinmuller/buck,mikekap/buck,grumpyjames/buck,justinmuller/buck,illicitonion/buck,clonetwin26/buck,Distrotech/buck,vschs007/buck,daedric/buck,justinmuller/buck,zhan-xiong/buck,ilya-klyuchnikov/buck,mikekap/buck,ilya-klyuchnikov/buck,rowillia/buck,romanoid/buck,illicitonion/buck,rowillia/buck,k21/buck,grumpyjames/buck