commitmonitor Code

(Closes issue #184) : Allow to mark a change as new/unread
* add command to set the state of an item as unread.
* only mark an item as read when the item gets selected, not unselected.

(Closes issue #168) : Own commits aren't displayed in the change log immediatelly after the project was checked for commits
* Refresh the list control if there are new unread entries too.
* Fix bug when refreshing entries if all log entries were removed.

(Closes issue #183) : Monitored project changes to a folder with several subdirectories
* use the last checked revision as an additional check

Update to svn 1.6.5 and neon 0.28.6

Update version info for update-checker.

Tag the 1.6.3 release.

Update to Subversion 1.6.4

Bump version number to 1.6.3

Update to apr 1.3.8, apr-util 1.3.9 and neon 0.28.5.

(Closes issue #175): Max. No. of log entries to keep 1000

* show an error balloon if the entered value is out of range.