commitmonitor Code

Bump version number to 1.6.5

(Closes issue #198) : Negative filter
Use '-' as the first char of the filter to negate it.

Only show authors for new commits.

Use ShowNotification() instead of ShowMessageEx().
This adds to issue #189.

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

revert r464 - doesn't link.

Update to neon 0.29

(Closes issue #186) : Doubleclick clears filter text
* subclass the edit control to handle the doubleclicks.

(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.

(Fixes issue #200) : CommitMonitor fails to store repository information when a large amount of log information is retrieved
* drop the limit of 100kB for strings when serializing
* use a wchar_t static buffer for smaller wide char strings