Bug Fix: Child windows would sometimes 'jump' slightly upon initial activation of a parent window.
Bug Fix: Child windows would sometimes 'jump' slightly upon initial activation of a parent window.

cbeck88/cegui-mirror,cbeck88/cegui-mirror,cbeck88/cegui-mirror,RealityFactory/CEGUI,arkana-fts/cegui,cbeck88/cegui-mirror,RealityFactory/CEGUI,RealityFactory/CEGUI,RealityFactory/CEGUI,RealityFactory/CEGUI,arkana-fts/cegui,cbeck88/cegui-mirror,arkana-fts/cegui,arkana-fts/cegui,arkana-fts/cegui