commitmonitor Code

ups, broke the menu enabling part.

Save the maximized state in the WM_SIZE handler as well.
(Fixes issue #388) : Window position is lost when minimizing from taskbar

Add a context menu command to open the repository browser for the selected revision (only if TSVN is installed).
(Fixes issue #401) : I can't export a single file commited on repository from commit monitor

Refactoring: move code to handle the context menu into a separate function.

Fix a few /analyze and cppcheck warnings.
(Fixes issue #398) : Cppcheck and /analyze results

Remove the "using namespace std" statements and explicitly refer to the std namespace where needed.

Fetch the selection mark in case the notification was for a de-selection.
(Fixes issue #395) : Wrong behavior when selecting multiple revisions

use consistently an empty line between functions

Construct the diff url from the repository root.
(Fixes issue #383) : Diff on one-file-revision fails due to invalid SVN path

Use smart pointers for allocating memory and fix a few memory leaks while doing so.
Also replace our custom auto_buffer with std::unique_ptr<>.