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

Change-Id: I815d720b2abd0a7ff04be569cadc645db827234b