CBLT-120: also show for iOS and Android

Change-Id: I33d51a73eae0cf13e3aad7bc0c26acfdc77cbf46
CBLT-120:  rename last_sync_gateway() to return_build_info()

Change-Id: I887c28ab3d96b293d95ab6512424a4b275dc23f3
CBLT-120:  don't die if there no matching builds yet

Change-Id: I25ff365f6c42f5281397fd0d562e552baf192b6f
CBLT-120:  new format with platforms in column 1, include iOS and Android

Change-Id: I2f0b04269cddcfbc26fa19bfad21ca5ae7bc1686