Use --no-document instead of --no-rdoc/--no-ri.

gem says --rdoc and --ri options are deprecated.
Don't display edits during user's name update
diff heaps used for memory leak detection
FEATURE: allow overriding server static asset if needed
BUGFIX: Use ENV["USER"] before falling back to postgres
Merge branch 'site_endpoint' of github.com:lonehangman/discourse into site_endpoint