Update ExtJS to 3.4.1 + added ability to load ext-all-debug for development
Also use ext-base-debug when ext_debug is set to true
Merge remote-tracking branch 'rtripault/ext-3.4.1' into ext-3.4.1.1
add changelog entry
Upgrade to ExtJS 3.4.1.1 + add ExtJS debug support

Merge branch 'ext-3.4.1.1' into release-2.2

* ext-3.4.1.1:
  add changelog entry
  Also use ext-base-debug when ext_debug is set to true
  Update ExtJS to 3.4.1 + added ability to load ext-all-debug for development