Graphene and Drone upgraded

* Graphene to 2.0.0.CR1
* Drone to 1.2.0.CR1
* ftest-legacy made running (it runs only with FireFox 21 and lower due to selenium bug)
fragments: fixed treeNode(selection, expansion, collapsion) and popupPanel(wrong element for header controls) fragments
ContextMenu tests fixed

* showDelay and hideDelay fixed - it was testing too small values, only
  testing with values bigger than 1500 ms brings stable results, there
were also improper setting of timeout for waiting
* testOnKeyUp - changed to test via JS
* all tests except Future should pass
RF-13192: reproducer added
ftest-legacy: Selenium upgraded to 2.35

* In Selenium 2.34 was fixed bug which caused that this modul was
 runnable only on Firefox 21 and below. Now it works also on FF 22
Rich Accordion item tests refactored to SE2
Fixed mistake done in previous commit - import wasnt deleted
reproducer for RF-13241 ECSS: Not possible to define one property multiple times
RichTab tests converted to SE2, attribute list for legacy tests updated respectively
Added tests for CollapsiblePanel JS API
metamer: fixed tests for messages components to be compilable on JDK 6 (RFPL-3041)