removed setEpsilonForPrintPrecision()

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23989 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
use exact comparisons when building ExpressionNodes

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23990 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Updated Reduce packages from Reduce's repo

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23992 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e