commitmonitor Code

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

Mask out the four lowest bits in the wParam of the WM_SYSCOMMAND message as stated in the docs.
This adds to issue #44.

Patch from lanwin.de (slightly modified by me):
Fix issue #44.

* Save the dialog position right before the dialog gets maximized.
* Do not save the dialog position on close if it is maximized.
This implements issue #44.

Reset system tray icon when the main dialog is closed.
This fixes issue #45.

Only set the check interval to the minimum set by a robots.txt file if the manually entered interval is actually smaller, not bigger!
This fixes issue #48.

Only load the first 1000 entries. Since we don't store more than the last 1000 log entries, there won't be more than that anyway.
This fixes issue #38.

Reduce the log entries to 1000 *before* serializing the std::map.

The 'Subversion' target depends on the target 'VersionInfo'.

Restore the slider positions correctly with half the slider width as an offset.