5.0.46.0 - iOS Tablet release

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37857 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
User can remove the image of turtle - on web. (#4721)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37858 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Make sure Webcam option is only visible when supported

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37859 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3420: luckily, I've seen a comment in GeoGebra code that helped solving the key events for IE

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37860 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Update test project

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37861 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
deleting tools

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37862 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e