hopefully faster image drawing

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35365 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Local files for tablets and phones

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35366 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4447 - test if app is a chrome webapp added to app.html

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35367 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Removed GBufferedImageW

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35368 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e