commitmonitor Code

(Closes issue #293) : Adding %username to command execution

Reduce stack size by allocating memory on the heap.

(Closes issue #321) : Option to disable popup notifications

If modifying the sys tray icon fails, remove it and add it again just to be on the safe side.

* only save the urls file if something important changed during an update check
* do not read the urls file for every update check but create an in-memory copy instead

Closes issue #304

Rename a lot of classes and methods.

Merge the MultiSCCS branch to trunk and fix some minor merge conflicts.

Don't open the main dialog on a right-click on the tray icon.

When opening/closing the main dialog with a single click, ignore double clicks.

A click on the tray icon closes the main window if it's visible.

Update issue #281