Merge "remove hard-coded behavior for Android libraries, replacing them with support for a new doclava option, "dac_libraryroot", which specifies the path to this API's root URL (after accounting for DAC's reference/ path). For example, the wearable doclava build must specify libraryroot as "android/support/constraint/". Also required is a unique name for array created inside lists.js, specified with the "dac_dataname" option. For wearable, it is "SUPPORT_WEARABLE_DATA"" into oc-dev am: d001ea7777
am: fcdf0ec660  -s ours

Change-Id: I3fc9208016807f79e8f4a49b1e86b533701884d0