[TASK] Add GET parameter to JS files fetched via RequireJS

As most files are loaded via RequireJS now, the configuration
needs to add a GET parameter in order to avoid browser caching
of changed JavaScript files.

For development environments the current timestamp is added. For
other environments / application contexts a hash based on the
TYPO3_version is added, allowing to have end-users to fetch
the latest version after e.g. TYPO3 has been updated.

Resolves: #68133
Releases: master
Change-Id: Ifbc13cafe519a2a83f51c3869a028028f3b24368
Reviewed-on: http://review.typo3.org/41219


Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>