commitmonitor Code

(Closes issue #230) : Make commit monitor portable
Load/Save the data file to the app directory if the exe name has "portable" or "local" in it.

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

(Fixes issue #196) : Show Diff not working
* before using TSVN to show the diff, check the version of the TortoiseProc.exe and only use it if its version is 1.5 or higher.

make the error message box task-modal.

Fixes issue #147:
Check for the process name to be CommitMonitorLocal.exe, and if it is (instead of the default CommitMonitor.exe), save/load all data in the same directory as the application exe file is instead of %APPDATA%\CommitMonitor.

Show the date/time of commits in the DST of the commit, not the current DST.

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

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

Add helper function to split a string into a vector.

Add function which returns the installation path of TortoiseSVN.
The 32-bit version is preferred, but if it is not installed, the x64 version of TSVN is used instead if that one is installed.

This is the first step to resolve issue #80.

Remove the use of apr_time_exp_lt() to avoid garbage in the date text.