added .length() operator for strings (array operation is overloaded)
added .length() operator for strings (array operation is overloaded)
added .trim() and .capitalize() operators
changed ucfirst() to capitalize() in parser
added math:power(), math:ceiling(), math:round(), and math:floor()
fixed some tests
Merge branch 'master' of github.com:kre/Kinetic-Rules-Engine
added .index() operator