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- 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.
Log when recover index samples on startup
Log manual triggering of index sampling
Code cleanup
Log when evicting stale plans
Fix: unused imports
Internal server cleanup

This does not go quite as far as it should, but goes a little way towards
cleaning up stray items in the server. The package structure needs a bigger
cleanup, but that job is much more complex as several interfaces in the
internal packages are exposed as public API and are thus unmoveable directly.

- Remove unused services and classes
- Move REST service classes into rest package
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
Fix for docs bug in import-tool manpage, and an additional example.
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.