GetStringWidth fix
Merge pull request #284 from andreymal/dev

GetStringWidth fix
fixed m_oldMusic.push_back(nullptr) and segfault
Merge pull request #287 from andreymal/dev-fix-sound

fixed m_oldMusic.push_back(nullptr) and segfault
Check if pause music is defined in scene before trying to play it
Merge branch 'dev' into dev-ui
Better CEGUI Button