process package prefix context as directory context (no more references on all literals when package prefix is set for one of dependant modules)
do not use FileEditorManager.isFileOpen as it works incorrectly when no tabs are shown (IDEA-110527)
IDEA-109814 "Don't ask me again" on exit is not honoured
IDEA-110591 Gradle: Allow to specify gradle vm args at the ide
IDEA-110603 External system: Run selected task on double click