[PATCH 079/153] split the aurora client into internal and OSS versions
[PATCH 079/153] split the aurora client into internal and OSS versions

This splits the aurora client into a few different pieces:
  src/python/twitter/aurora/client/bin
  src/python/twitter/aurora/client/bin_internal
  src/python/twitter/aurora/client/commands
  src/python/twitter/aurora/client/commands_internal

Similarly for the test directories.  There are still a couple places marked
with TODO MESOS-3673 that need to be cleaned up (e.g.  http_signaler, which
is in common, still depends on common_internal Location, but unnecessarily.)

The test BUILDs haven't been 100% split, but once we do the OSS split, we
will probably just maintain tests/python/twitter/aurora:all and
tests/python/twitter/aurora:all_internal.

RB_ID=186951

(sapling split of bcf5a007907766bf2af27649a7b9f78e0102a794)

cevaris/commons,nkhuyu/commons,ericzundel/commons,abel-von/commons,pombredanne/commons,VaybhavSharma/commons,ericzundel/commons,ericzundel/commons,nkhuyu/commons,cevaris/commons,nkhuyu/commons,Yasumoto/commons,WCCCEDU/twitter-commons,atollena/commons,jsirois/commons,brutkin/commons,VaybhavSharma/commons,brutkin/commons,nkhuyu/commons,pombredanne/commons,nkhuyu/commons,WCCCEDU/twitter-commons,atollena/commons,pombredanne/commons,brutkin/commons,VaybhavSharma/commons,cevaris/commons,ericzundel/commons,pombredanne/commons,cevaris/commons,atollena/commons,ericzundel/commons,Yasumoto/commons,jsirois/commons,cevaris/commons,jsirois/commons,jsirois/commons,WCCCEDU/twitter-commons,pombredanne/commons,Yasumoto/commons,VaybhavSharma/commons,WCCCEDU/twitter-commons,atollena/commons,brutkin/commons,Yasumoto/commons,VaybhavSharma/commons,Yasumoto/commons,WCCCEDU/twitter-commons,brutkin/commons,abel-von/commons,atollena/commons,abel-von/commons,jsirois/commons,abel-von/commons,abel-von/commons