Change PublishCommand to use BuildCommand.run
Change PublishCommand to use BuildCommand.run

Summary:
This is a part of series of changes to avoid using `BuildCommand.buildTargets` as a global variable.

Migrating to a pattern used by `InstallCommand`. This allows us to pass build targets back.

Reviewed By: ttsugriy

fbshipit-source-id: e347f97

romanoid/buck,LegNeato/buck,romanoid/buck,SeleniumHQ/buck,Addepar/buck,romanoid/buck,Addepar/buck,JoelMarcey/buck,LegNeato/buck,rmaz/buck,LegNeato/buck,zpao/buck,LegNeato/buck,romanoid/buck,JoelMarcey/buck,shs96c/buck,brettwooldridge/buck,nguyentruongtho/buck,brettwooldridge/buck,SeleniumHQ/buck,Addepar/buck,brettwooldridge/buck,Addepar/buck,SeleniumHQ/buck,brettwooldridge/buck,LegNeato/buck,rmaz/buck,Addepar/buck,kageiit/buck,brettwooldridge/buck,rmaz/buck,rmaz/buck,SeleniumHQ/buck,kageiit/buck,JoelMarcey/buck,SeleniumHQ/buck,SeleniumHQ/buck,facebook/buck,nguyentruongtho/buck,JoelMarcey/buck,kageiit/buck,JoelMarcey/buck,brettwooldridge/buck,shs96c/buck,romanoid/buck,shs96c/buck,romanoid/buck,LegNeato/buck,shs96c/buck,Addepar/buck,Addepar/buck,brettwooldridge/buck,LegNeato/buck,shs96c/buck,rmaz/buck,shs96c/buck,SeleniumHQ/buck,nguyentruongtho/buck,shs96c/buck,zpao/buck,rmaz/buck,romanoid/buck,shs96c/buck,facebook/buck,JoelMarcey/buck,shs96c/buck,brettwooldridge/buck,facebook/buck,zpao/buck,romanoid/buck,rmaz/buck,rmaz/buck,JoelMarcey/buck,romanoid/buck,Addepar/buck,LegNeato/buck,romanoid/buck,facebook/buck,kageiit/buck,LegNeato/buck,romanoid/buck,rmaz/buck,Addepar/buck,SeleniumHQ/buck,romanoid/buck,LegNeato/buck,romanoid/buck,nguyentruongtho/buck,brettwooldridge/buck,LegNeato/buck,brettwooldridge/buck,Addepar/buck,facebook/buck,kageiit/buck,Addepar/buck,zpao/buck,JoelMarcey/buck,facebook/buck,brettwooldridge/buck,rmaz/buck,JoelMarcey/buck,SeleniumHQ/buck,Addepar/buck,zpao/buck,JoelMarcey/buck,brettwooldridge/buck,nguyentruongtho/buck,nguyentruongtho/buck,zpao/buck,shs96c/buck,rmaz/buck,nguyentruongtho/buck,SeleniumHQ/buck,shs96c/buck,SeleniumHQ/buck,SeleniumHQ/buck,kageiit/buck,JoelMarcey/buck,JoelMarcey/buck,JoelMarcey/buck,rmaz/buck,zpao/buck,SeleniumHQ/buck,brettwooldridge/buck,rmaz/buck,shs96c/buck,kageiit/buck,LegNeato/buck,facebook/buck,shs96c/buck,Addepar/buck,LegNeato/buck