commitmonitor Code

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<>.

* add an empty line after the license header
* remove unneeded empty lines at the end of files
* use the right case for the includes
* always use <> for system headers
* update ext/Versions.txt

patch from XhmikosR:
bump the copyright year, remove unwanted spaces and convert some tabs to spaces.

Check for empty project name and show an error balloon/messagebox if it's empty.
(Fixes issue #334) : Creating a new project with just some random text as "URL to monitor" creates a new empty project.

Increase the max number of log entries to keep to 100000, but keep the default as 1000.
(Closes issue #350) : Higher "Max No. of log entries to keep"

(Closes issue #293) : Adding %username to command execution

* don't sort the sccs combo
* set the combo when initializing for a specific sccs
* small whitespace changes and cleanup

Merge the MultiSCCS branch to trunk and fix some minor merge conflicts.

(Closes issue #275) : Ability to monitor commits of certain users

* add a new section in the URLs dialog which takes a list of users to include

convert tabs to spaces.