Removed App.printStacktrace calls

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27849 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
GeoGebraCASIntegrationTest:

Added method "tc" as copy of "t" to allow for evaluation commands.
Changed "t" to use "tc" internally, choosing evaluation mode (empty evaluation command).

Minor reformatting.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27850 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
add option "label" to all possible elements

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27851 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e