kernel - Integral[sin(x)] works #3540

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27627 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3485: beginning refactoring of AppW into subclasses (for speedup)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27628 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Encapsulate write access to Term.coefficient

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27629 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3247 naming fix

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27630 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e