Use IDEA 14 now
Some dialog related tests are failed with new IDEA sdk. fixed them.
LeaveTabEvent is not needed
Improve the test
Make method type explicit
Forgot to handle some events
Improve the log
Fixed CurrentProjectHolder

Different project should not share the same project object.
Fix ClientContextHolder, which is also associated with current project
Fix also ServerStatusHolder
Fix also ClientContextHolder, which is associated with a project
Extract ClientInfoHolder to a standalone class and fix compilation errors
Remove unused imports