Bug 1105052 - Update in-tree jsmin to commit a878bf0. rs=gps

This is a straight copy from

https://bitbucket.org/dcs/jsmin/commits/a878bf0ba0ff6501467be0fc104b6a070790e507

paired with a tiny change to use the new quote_chars option.

--HG--
extra : rebase_source : 75d604ffafc7062c663bca4242af35546d2c1e3a
Bug 1104855 - Don't rebuild the omnijar on every Gradle build. rs=margaret

This ticket splits a new omnijar project off of base.  The new
project's omnijar task knows the inputs (well, those under
mobile/android) and the omni.ja output and only re-packages the
omnijar when the task's output is out of date.

With this modification, local building and most importantly the
Android JUnit test cycle is much improved, because the APK is not
re-deployed when only test code is modified.

In addition, the new project lists the omnijar inputs as "Java" source
directories.  Previously, they were listed as "Java resource" source
directories, which meant that the omnijar inputs were packaged into
the final APK.  This wasted time and space.

--HG--
extra : rebase_source : 12c94fdfbee9b7c319d5cfb4d7faad254e90abfc
Bug 1098667 - Part 1: Import from android-sync. r=rnewman

--HG--
extra : rebase_source : 4ebbd8323bcf7d96f91f6df114d1a61703e3b8bc