Fixed potential highlighting for symmetry tiles.
Work on line tool.
Merge branch 'master' of http://github.com/PeterReid/tagpro-map-editor
Lines work with symmetry.
Line tool draws correctly for steep and shallow lines.
Cap width and height at [1, 50].
Add another zoom level.
Added basic positioning. On the way to making this look better.
Toolbar and map scroll separately
Symmetry works
Don't leave controlDown set when the user tabs away