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
Merge branch '6.3.x' into 'BS-2683_DM_Compo'