= Merge changes from Git commits 2c3fe81, cb35e08, and b3ef5bf (16 April 2013):
* Some fixes/additions thanks to Dustin Parker:
- Added ability to copy/paste line properties
- Implemented grid sizes and snapping for non-integral grid
- Fix crash on right click during line draw
- Improved map architecture copy/paste
* Added check for map modification + save prompt on closing the map editor window
* Set correct locale when writing UDMF maps (so that floating point numbers are written in the correct format)

git-svn-id: http://mancubus.net/svn/hosted/slade/trunk@1413 1ddb354d-3e0c-0410-833a-d70222086f97
- Allow compilation with VC++ 2005.

git-svn-id: http://mancubus.net/svn/hosted/slade/trunk@1414 1ddb354d-3e0c-0410-833a-d70222086f97