Merge pull request #166 from kruland2607/master

Various fixes for 13.11 release
Merge pull request #167 from kruland2607/master

Prevent reordering columns in flight configuration tables to prevent casting exceptions.
Updated ReleaseNotes and build.properties for 13.11.1 release.
Updated release notes again and the web pages.
Update update.php script.
Update build number to 13.11.1dev
Save the excluded motor manufacturers in the preferences when they are
changed.