* menumanager: fix possible concurrent modification exception, add small
optimization for left click entries, and cleanup
* menumanager: stop entries from swapping in the right click menu if the
swapFrom is already the first option
* Revert "rsclientmixin: make use of edited menuopened event variables"
This reverts commit d2cd11a7
* menumanager: set event entries in menuopened event to prevent conflicts
* menumanager: remove type change, and improve performance
* menumanager: add field to set priority level to prevent conflicts
1e6a5df6de