Fix code coverage in pex build
Fix code coverage in pex build

Summary:
`ReportGenerator` got moved to a new package, but the manifest for the jar in the
Buck build didn't get updated appropriately. Result:

```Error: Could not find or load main class com.facebook.buck.java.ReportGenerator```

Test Plan: Run tests with coverage using `buck.pex`. Observe no more error and coverage report is now generated.

artiya4u/buck,stuhood/buck,daedric/buck,Addepar/buck,sdwilsh/buck,vine/buck,rowillia/buck,vine/buck,dushmis/buck,zhan-xiong/buck,kageiit/buck,marcinkwiatkowski/buck,davido/buck,mogers/buck,marcinkwiatkowski/buck,Dominator008/buck,OkBuilds/buck,Dominator008/buck,hgl888/buck,justinmuller/buck,siddhartharay007/buck,SeleniumHQ/buck,lukw00/buck,rmaz/buck,Dominator008/buck,tgummerer/buck,k21/buck,janicduplessis/buck,Learn-Android-app/buck,facebook/buck,vschs007/buck,bocon13/buck,mnuessler/buck,davido/buck,shybovycha/buck,shs96c/buck,bocon13/buck,rowillia/buck,marcinkwiatkowski/buck,illicitonion/buck,LegNeato/buck,rmaz/buck,vine/buck,lukw00/buck,stuhood/buck,Distrotech/buck,rowillia/buck,raviagarwal7/buck,brettwooldridge/buck,dushmis/buck,mikekap/buck,romanoid/buck,mikekap/buck,rmaz/buck,rhencke/buck,mikekap/buck,liuyang-li/buck,lukw00/buck,hgl888/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,JoelMarcey/buck,zhan-xiong/buck,hgl888/buck,dushmis/buck,romanoid/buck,pwz3n0/buck,rmaz/buck,mogers/buck,luiseduardohdbackup/buck,liuyang-li/buck,daedric/buck,mogers/buck,bocon13/buck,shybovycha/buck,dushmis/buck,mnuessler/buck,1yvT0s/buck,rhencke/buck,hgl888/buck,Addepar/buck,k21/buck,SeleniumHQ/buck,Dominator008/buck,shs96c/buck,mikekap/buck,mnuessler/buck,clonetwin26/buck,zhan-xiong/buck,mogers/buck,bocon13/buck,zhan-xiong/buck,bocon13/buck,vine/buck,clonetwin26/buck,romanoid/buck,davido/buck,daedric/buck,luiseduardohdbackup/buck,mikekap/buck,zpao/buck,marcinkwiatkowski/buck,k21/buck,kageiit/buck,liuyang-li/buck,brettwooldridge/buck,tgummerer/buck,luiseduardohdbackup/buck,stuhood/buck,ilya-klyuchnikov/buck,rowillia/buck,JoelMarcey/buck,shs96c/buck,LegNeato/buck,siddhartharay007/buck,pwz3n0/buck,grumpyjames/buck,Heart2009/buck,artiya4u/buck,SeleniumHQ/buck,1yvT0s/buck,artiya4u/buck,ilya-klyuchnikov/buck,ilya-klyuchnikov/buck,sdwilsh/buck,pwz3n0/buck,shybovycha/buck,davido/buck,pwz3n0/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,OkBuilds/buck,ilya-klyuchnikov/buck,mogers/buck,SeleniumHQ/buck,artiya4u/buck,zpao/buck,hgl888/buck,stuhood/buck,hgl888/buck,liuyang-li/buck,shybovycha/buck,daedric/buck,dushmis/buck,zhan-xiong/buck,romanoid/buck,justinmuller/buck,SeleniumHQ/buck,hgl888/buck,raviagarwal7/buck,illicitonion/buck,dsyang/buck,darkforestzero/buck,rhencke/buck,Heart2009/buck,sdwilsh/buck,tgummerer/buck,marcinkwiatkowski/buck,bocon13/buck,dsyang/buck,davido/buck,davido/buck,illicitonion/buck,k21/buck,liuyang-li/buck,k21/buck,SeleniumHQ/buck,facebook/buck,vine/buck,zhan-xiong/buck,nguyentruongtho/buck,stuhood/buck,mnuessler/buck,shs96c/buck,robbertvanginkel/buck,stuhood/buck,robbertvanginkel/buck,artiya4u/buck,SeleniumHQ/buck,daedric/buck,LegNeato/buck,lukw00/buck,Distrotech/buck,SeleniumHQ/buck,shs96c/buck,shybovycha/buck,lukw00/buck,JoelMarcey/buck,darkforestzero/buck,clonetwin26/buck,rmaz/buck,lukw00/buck,rhencke/buck,rhencke/buck,k21/buck,lukw00/buck,Addepar/buck,raviagarwal7/buck,romanoid/buck,rhencke/buck,raviagarwal7/buck,JoelMarcey/buck,nguyentruongtho/buck,stuhood/buck,clonetwin26/buck,shs96c/buck,marcinkwiatkowski/buck,siddhartharay007/buck,dushmis/buck,justinmuller/buck,SeleniumHQ/buck,siddhartharay007/buck,k21/buck,facebook/buck,daedric/buck,sdwilsh/buck,illicitonion/buck,siddhartharay007/buck,liuyang-li/buck,shybovycha/buck,luiseduardohdbackup/buck,romanoid/buck,zhuxiaohao/buck,dsyang/buck,Distrotech/buck,SeleniumHQ/buck,janicduplessis/buck,facebook/buck,Learn-Android-app/buck,romanoid/buck,vschs007/buck,1yvT0s/buck,davido/buck,marcinkwiatkowski/buck,illicitonion/buck,kageiit/buck,Addepar/buck,zhan-xiong/buck,janicduplessis/buck,LegNeato/buck,Distrotech/buck,illicitonion/buck,raviagarwal7/buck,rmaz/buck,davido/buck,darkforestzero/buck,OkBuilds/buck,Distrotech/buck,neonichu/buck,raviagarwal7/buck,1yvT0s/buck,robbertvanginkel/buck,mnuessler/buck,facebook/buck,mnuessler/buck,ilya-klyuchnikov/buck,shybovycha/buck,raviagarwal7/buck,neonichu/buck,marcinkwiatkowski/buck,Heart2009/buck,darkforestzero/buck,liuyang-li/buck,vschs007/buck,JoelMarcey/buck,zhuxiaohao/buck,vine/buck,shs96c/buck,pwz3n0/buck,bocon13/buck,kageiit/buck,OkBuilds/buck,OkBuilds/buck,grumpyjames/buck,facebook/buck,justinmuller/buck,marcinkwiatkowski/buck,stuhood/buck,luiseduardohdbackup/buck,illicitonion/buck,Learn-Android-app/buck,shs96c/buck,Addepar/buck,rmaz/buck,OkBuilds/buck,rmaz/buck,tgummerer/buck,dushmis/buck,1yvT0s/buck,brettwooldridge/buck,clonetwin26/buck,clonetwin26/buck,zhan-xiong/buck,dushmis/buck,shybovycha/buck,rmaz/buck,pwz3n0/buck,neonichu/buck,robbertvanginkel/buck,janicduplessis/buck,dushmis/buck,mogers/buck,stuhood/buck,romanoid/buck,darkforestzero/buck,1yvT0s/buck,k21/buck,darkforestzero/buck,shybovycha/buck,OkBuilds/buck,brettwooldridge/buck,rhencke/buck,darkforestzero/buck,mikekap/buck,shybovycha/buck,illicitonion/buck,brettwooldridge/buck,dsyang/buck,robbertvanginkel/buck,rowillia/buck,mnuessler/buck,brettwooldridge/buck,brettwooldridge/buck,Learn-Android-app/buck,Dominator008/buck,zhan-xiong/buck,davido/buck,rowillia/buck,raviagarwal7/buck,brettwooldridge/buck,rmaz/buck,OkBuilds/buck,davido/buck,OkBuilds/buck,dsyang/buck,neonichu/buck,JoelMarcey/buck,dsyang/buck,brettwooldridge/buck,vine/buck,grumpyjames/buck,rmaz/buck,nguyentruongtho/buck,Heart2009/buck,LegNeato/buck,grumpyjames/buck,Learn-Android-app/buck,Dominator008/buck,rhencke/buck,robbertvanginkel/buck,rmaz/buck,davido/buck,ilya-klyuchnikov/buck,Heart2009/buck,kageiit/buck,Distrotech/buck,shybovycha/buck,mikekap/buck,clonetwin26/buck,mnuessler/buck,janicduplessis/buck,pwz3n0/buck,mogers/buck,Heart2009/buck,brettwooldridge/buck,shs96c/buck,janicduplessis/buck,sdwilsh/buck,janicduplessis/buck,rowillia/buck,k21/buck,Dominator008/buck,daedric/buck,Distrotech/buck,ilya-klyuchnikov/buck,Addepar/buck,illicitonion/buck,vschs007/buck,Learn-Android-app/buck,JoelMarcey/buck,SeleniumHQ/buck,grumpyjames/buck,kageiit/buck,rhencke/buck,grumpyjames/buck,vine/buck,sdwilsh/buck,nguyentruongtho/buck,zhan-xiong/buck,zhan-xiong/buck,shs96c/buck,stuhood/buck,vine/buck,siddhartharay007/buck,rhencke/buck,justinmuller/buck,nguyentruongtho/buck,Distrotech/buck,ilya-klyuchnikov/buck,clonetwin26/buck,justinmuller/buck,grumpyjames/buck,zpao/buck,Learn-Android-app/buck,grumpyjames/buck,artiya4u/buck,pwz3n0/buck,luiseduardohdbackup/buck,rmaz/buck,Addepar/buck,neonichu/buck,shybovycha/buck,pwz3n0/buck,OkBuilds/buck,k21/buck,Heart2009/buck,darkforestzero/buck,raviagarwal7/buck,brettwooldridge/buck,mogers/buck,ilya-klyuchnikov/buck,Learn-Android-app/buck,bocon13/buck,darkforestzero/buck,pwz3n0/buck,k21/buck,vschs007/buck,1yvT0s/buck,rowillia/buck,tgummerer/buck,lukw00/buck,raviagarwal7/buck,Addepar/buck,darkforestzero/buck,JoelMarcey/buck,Dominator008/buck,darkforestzero/buck,bocon13/buck,justinmuller/buck,zhan-xiong/buck,zhuxiaohao/buck,zhuxiaohao/buck,Dominator008/buck,vine/buck,robbertvanginkel/buck,rowillia/buck,ilya-klyuchnikov/buck,shs96c/buck,Learn-Android-app/buck,vine/buck,liuyang-li/buck,zhan-xiong/buck,daedric/buck,rowillia/buck,Addepar/buck,romanoid/buck,1yvT0s/buck,dsyang/buck,janicduplessis/buck,siddhartharay007/buck,zhuxiaohao/buck,clonetwin26/buck,justinmuller/buck,janicduplessis/buck,Heart2009/buck,OkBuilds/buck,vschs007/buck,vschs007/buck,tgummerer/buck,1yvT0s/buck,romanoid/buck,artiya4u/buck,romanoid/buck,mogers/buck,illicitonion/buck,bocon13/buck,tgummerer/buck,dushmis/buck,hgl888/buck,Dominator008/buck,dsyang/buck,JoelMarcey/buck,OkBuilds/buck,daedric/buck,LegNeato/buck,rhencke/buck,artiya4u/buck,mogers/buck,pwz3n0/buck,grumpyjames/buck,zhuxiaohao/buck,kageiit/buck,LegNeato/buck,justinmuller/buck,janicduplessis/buck,artiya4u/buck,liuyang-li/buck,davido/buck,lukw00/buck,grumpyjames/buck,darkforestzero/buck,Addepar/buck,mogers/buck,vschs007/buck,dsyang/buck,Distrotech/buck,JoelMarcey/buck,liuyang-li/buck,LegNeato/buck,tgummerer/buck,dsyang/buck,robbertvanginkel/buck,Learn-Android-app/buck,shybovycha/buck,Addepar/buck,sdwilsh/buck,SeleniumHQ/buck,brettwooldridge/buck,luiseduardohdbackup/buck,daedric/buck,justinmuller/buck,illicitonion/buck,nguyentruongtho/buck,mikekap/buck,robbertvanginkel/buck,OkBuilds/buck,ilya-klyuchnikov/buck,justinmuller/buck,sdwilsh/buck,rowillia/buck,k21/buck,Addepar/buck,tgummerer/buck,raviagarwal7/buck,janicduplessis/buck,hgl888/buck,luiseduardohdbackup/buck,LegNeato/buck,neonichu/buck,LegNeato/buck,zpao/buck,mikekap/buck,JoelMarcey/buck,liuyang-li/buck,shs96c/buck,davido/buck,neonichu/buck,clonetwin26/buck,grumpyjames/buck,tgummerer/buck,zpao/buck,sdwilsh/buck,mikekap/buck,lukw00/buck,dsyang/buck,robbertvanginkel/buck,janicduplessis/buck,brettwooldridge/buck,siddhartharay007/buck,mikekap/buck,daedric/buck,artiya4u/buck,JoelMarcey/buck,zpao/buck,sdwilsh/buck,sdwilsh/buck,clonetwin26/buck,k21/buck,facebook/buck,rowillia/buck,zhuxiaohao/buck,marcinkwiatkowski/buck,neonichu/buck,grumpyjames/buck,nguyentruongtho/buck,lukw00/buck,vschs007/buck,shs96c/buck,raviagarwal7/buck,dsyang/buck,robbertvanginkel/buck,Dominator008/buck,robbertvanginkel/buck,neonichu/buck,zhuxiaohao/buck,siddhartharay007/buck,zpao/buck,clonetwin26/buck,LegNeato/buck,LegNeato/buck,sdwilsh/buck,stuhood/buck,luiseduardohdbackup/buck,justinmuller/buck,artiya4u/buck,illicitonion/buck,romanoid/buck,zhuxiaohao/buck,mnuessler/buck,clonetwin26/buck,sdwilsh/buck,marcinkwiatkowski/buck,vschs007/buck,justinmuller/buck,daedric/buck,Learn-Android-app/buck,vschs007/buck,Dominator008/buck,bocon13/buck,vschs007/buck,robbertvanginkel/buck,tgummerer/buck,vschs007/buck,Addepar/buck,darkforestzero/buck,illicitonion/buck,marcinkwiatkowski/buck,mikekap/buck,LegNeato/buck,Heart2009/buck,romanoid/buck,Distrotech/buck,dsyang/buck,daedric/buck,Distrotech/buck,raviagarwal7/buck,marcinkwiatkowski/buck,bocon13/buck