gplugin/gplugin

Update the change log and adjust the version number for new api

Testing Done:
Compiled and ran the unit tests.

Reviewed at https://reviews.imfreedom.org/r/1348/
REVIEWBOARD_URL = "https://reviews.imfreedom.org/"
REPOSITORY = "gplugin/gplugin"
REPOSITORY_TYPE = "mercurial"
BRANCH = "default"
LAND_DEST_BRANCH = "default"
LAND_PUSH = False