Always center SDialog on parent when shown
Truncate TEXTURES scale to 3 decimal places (not 1)
Merge branch 'master' of https://github.com/sirjuddington/SLADE.git
Merge pull request #153 from Gaerzi/master

Sync with my fork.
Merge branch 'master' of https://github.com/sirjuddington/SLADE into Music