Merge pull request #15 from Robert42/feature-center-character-in-monospace-fonts

Center character in monospace fonts
Fix Rectangle::background_color(QuadCorner index, const Ogre::ColourValue& colour)

Typo mBorderColor instead of mBackgroundColour
Merge pull request #16 from alexeyknyshev/master

Fix Rectangle::background_color(QuadCorner index, const Ogre::ColourValue& colour)
Merge branch 'master' into space-deminer