commitmonitor Code

(Closes issue #189) : Snarl notification
* register CM with snarl
* register three different notification classes

Fixed issue #121: SegFault of CommitMonitor on Windows Shutdown

* make StopThread() only try to stop the thread, not terminate it forcefully
* if StopThread() can't stop the thread in time, use TerminateProcess to 'shut down'

* Tell SASL where to find the plugin dlls on startup.

This adds to issue #82: include the sasl dlls in the installer

Update to r28878 of the Subversion trunk and adjust the code according to the API changes.

use a custom client id string.

Make sure that even with IPv6 enabled the CommitMonitor can run on systems earlier than XP.

Indicate the GPL license.

comment out some test code.

Use a memory mapped file for loading the url infos.

Don't use a static buffer, it's not thread safe.