Summary:
Node on SandCastle is ancient, this change makes sure we can use the node version of `www`.
Node 6 can't parse dangling comma's in argument lists, which is what prettier automatically inserts by fbsource standards
Reviewed By: passy
Differential Revision: D20366026
fbshipit-source-id: 1b2a0c1506e8671fa268fab7a8d3bfcd5064bb0b
Summary: Yesterday's script failed if prepare-release was invoked from another dir
Reviewed By: jknoxville
Differential Revision: D20362093
fbshipit-source-id: a0ce877a2f145f320cf346dc86e3d2568279b8b9
Summary: This makes the changelog generating part of the bump-version process, rather than the build-release
Reviewed By: passy
Differential Revision: D20284211
fbshipit-source-id: f4a5c9bdb98c91f11a216957c9d5175c4b64fe70