Updated mediawiki/extensions
Project: mediawiki/extensions/SVGEdit  e9138f945f82fbe6772675fef47bb0e53de8d766
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JavaScript maintenance

This fix a few trivial Javascript lint checks which should be harmless
although untested.

* jshintrc comes from Mediawiki core, I have slightly tweaked it to
  allow alert() and multiples "var" declarations.
* Fixed equalities to strict equalities.
* Some double quotes have been singled out.
* Missing semicolon (some of them might still be need to be added).

Change-Id: I846d5a87f8761aec1d3897a35a1d12c8f85b916f