typo fix

small typos are fixed.

typo fix

small typo is fixed.

typo fix

small typo fixed
Re-add external UUID lib
Build: Config push builds
SimplePush: Refactor to properly handle reregistered channels
Merge branch 'master' into Notifier
SimplePush: Change channels to channelIDs in hello message
make travis only build master branch
SimplePush: Always send channelIDs on hello even if empty
SimplePush: Clean up hello channel registration and duplicate eventing