Fix for localization in Win8 wrapper

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28029 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Try to clear the TouchController state when user stops working with EV

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28030 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Error and dialog positioning

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28031 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3485: getGuiManager should not create it when it doesn't exist

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28032 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e