BS-7872 Fix internationalization (missing commit)
BS-8664: Provide two new actions to open URLs in external browser from
Welcome page
fix headers
BS-8746: use UTF-8 encoding to scan .proc files
BS-8199 Fix Import & Export of .bpmn files

- Export :
-- set boundary timer event atatchedRed properties to the parent activity instead of itself
Import :
-- Add the non interrupting_timer_boundary cases when missing
-- Remove the set of ModelVersion and ProductVersion on the created proc file to the current version instead of 5.5.
handle the case of no date for rss feed on welcome page
BS-8709: After Refactoring for BS-6723 and BS-8455, the class
DisplayEngineExpressionWithName was duplicated in two plugins and it
wasn't always the same used.
BS-8681: don't use Webkit in order to allow Studio to start on Ubuntu
14.04
Fix classifier for console's bonita-home.
BS-8664: update welcome page to use URL opening in external browser,
updated RSS flux to have different ones from older versions
Merge branch '6.3.x' into 'BS-8602_ProfilesImportExport'