Only handle WikibaseEntityModificationUpdate
Update HookSetup.php
Update i18n shim

A performance issue was fixed in the shim(s) generated by
generateJsonI18n.php, so it needed to be updated.
Merge pull request #17 from siebrand/shim-update

Update i18n shim
Merge pull request #16 from wmde/alterHooks

Only handle WikibaseEntityModificationUpdate
Update WikibaseQuery.php
Use Wikibase's snakview for the SimpleQuery special page

Fixes bug 55593.
Move phpunit tests to tests/phpunit
Add qunit tests for JavaScript
Address review