commitmonitor Code

* enable all controls in the url dialog
* don't check the url in the url dialog but do that later (not implemented yet) in the main dialog or even the check thread
* add load/save methods for our persistent data

* the url dialog only needs one CUrlInfo, not the CUrlInfos object
* use a map with the URLs as a key for the CUrlInfos instead of a vector

Add class which holds the info about monitored urls.
Also implement loading/saving the data of the class by using the serialization of the boost library.

Implement SVNInfo command.

Add new dialog to edit and add URL settings.