a couple helper functions and the new simplification call
Little tweaks and new simplification code
Getters
Added Group helper class for composing multi-dimensional functions
Added abelian metadata tag
Little tweaks and added new simplification code
Added enable_if's and Simplify's where appropriate
Removed attempted support for dimensional quantities and added UnaryMinus simplification
Removed awful variadic simplification code for better and more flexible code in simplify_variadic.hh
Changed variable indices
Added a few more tests, nothing major
Testing tuple-input-unpacking
Changed variable indices
Added tests for complex coefficiented polynomials
Added another simplification test
changed variable indices
Changed variable indices
Added more functionality for STD_FUNCTION
Added insert_element helper function
Added getter and streamer