Made a mixin for Lfunctions
Moving back parsing of lcalc parsing to main Lfunction, for some reason it is used for Maass forms
Systematization of the Ltype Lkey
Removed dependency of Lfunction_base on lcalc parsing
Moved lcalc generation outside of :function_base
Typo and documentation
Merge pull request #29 from pdehaye/master

Lfunction progressively taking only core L function properties