Disk write
Merge pull request #77 from Gaerzi/master

Disk write
Clicking cancel when creating a new map will not open the map editor
We still need to at least draw the grid if the map is empty :P
Removed unneeded calls to wxString::c_str()
Removed more unneeded calls to wxString::c_str()
Removed last unneeded calls to wxString::c_str()
Restored a few CHR() that were in fact needed.
Merge pull request #78 from Gaerzi/master

Sync with my fork.
Clicking cancel when creating a new map will not open the map editor
We still need to at least draw the grid if the map is empty :P
Fixed possible crash on merging overlapping lines
Update project for debug build
Fixed rendering glitch when selection numbers were enabled with SFML
Merge branch 'master' of https://github.com/sirjuddington/SLADE.git
Properly init map object variables on all constructors (sectors were being created with random types/tags)
Pasting things shows the correct sprite again
Patch table.
Merge pull request #79 from Gaerzi/master

Well, that's weird. They weren't in master already?
Fixed possible crash on merging overlapping lines