add shared manifest

Change-Id: Ic8d323660333ce7e58ad1f8fff764f0b30889b22
enable adding aosp remotes to shared projects

Change-Id: I37de7adb8a1cdd1f8afba8852a4b736af14de190
a bunch of shit preping for 4.3

Change-Id: I19fe0b1db29c28fbbfbeb7a76c6141de26284d3b
more untested changes

Change-Id: I2c569ea25e84ff186b96a69f80c6ed11acd56e61
add extra projects to manifest

Change-Id: Id500f7b49c9c0ffbb5ee8df67616041f7ad40f1d