add roomservice and repopick
for my convenience make dependencies general
adjust tools
customsetup.sh: Add gerrit function

Creates gerrit remote to push, gerrit then replicates to github

To push directly : git push gerrit android-4.4
Upload for review : git push gerrit HEAD:refs/for/android-4.4

Change-Id: I07a2d9c6bf9eb37a667aebd5c3d85424b2d1f591
Some useful functions to manage branches, tags and upstream changes

Change-Id: If9908b20a91ac58ae709a777d2adb2ec4938292f
Merge branch 'kitkat' of github.com:android-legacy/android_build into kitkat