Activate Grunt rev task

- Prepends js and css file names with md5 of
contents so web browsers don't load cached files
when the contents has changed.
Add no-cache headers on Ajax GET calls.

- Fixes IE 9 getting 304:s form the server when requesting labels etc.
UI/UX fixes

* Cypher frame height fix.
* Give REST frame correct CSS classes for errors.
* Make more sense of REST error messages.
* Show long error messages in frame body.
Fix graph rendering on IE 9

* IE 9 has something called window.performance but not
the method now on that object.
Make the primitive collections visitors generic over Exception types.
Updates changelogs for 2.2.0-M01
Uses garbage free read-method on Reader for CSV reading

i.e. the method accepting a char[]. The read-method accepting a CharBuffer
is implemented wastefully in Reader, and should therefore be avoided. This
means that a new interface has been introduced, of which javadoc explains
the situation as well.
Correct package for cypher compiler ComponentVersion
Correct package for cypher compiler ComponentVersion
Merge pull request #3476 from tinwelint/2.2-less-gc-thread-ahead

Uses garbage free read-method on Reader for CSV reading
Merge pull request #3505 from digitalstain/master

Updates changelogs for 2.2.0-M01
Merge pull request #3496 from oskarhane/2.2-fix-graph-render-ie9

Fix SVG graph rendering in IE 9
Merge pull request #3495 from oskarhane/2.2-ui-polish

UI/UX fixes
Remove the DependencyResolver dependency from the StoreMigrator.

Instead inject it in through the `migrateIfNeeded` method, because this happens at a time where the SchemaIndexProvider
has just been initialised anyway, so there's no need for any pseudo late-binding tricks.
Updates Browser changelogs for 2.2.0-M01

- Add recent merged featues.
Add bit of javadoc to primitive visitors

Also fix a bug where the offheap long long map would always produce a 0 value when visited.
Merge pull request #3418 from oskarhane/2.1-cache_buster

Make browsers fetch uncached files if updated.
Merge branch '2.1-maint'
Merge pull request #3483 from oskarhane/2.1-no-cache-ajax-get

Add no-cache headers on Ajax GET calls.
Merge remote-tracking branch 'origin/2.1-maint'