use same Wikidata.php entry point as currently used

this ensures only client and/or repo are enabled,
per wmf config (as used on beta)

w/o this, we get a fatal error on clients
Merge pull request #9 from wmde/extensionlist

Fix extension list build resource
Merge pull request #10 from wmde/extensionlist

use same Wikidata.php entry point as currently used
Update README.md
Update README.md
fix irc channel
Fix extension name for Special:Version

have it match the gerrit repo name so that the
correct git hash is displayed.