Fix c-code generation for nested conditional functions
Fixed problem with operator resolution in c
Fixed the test associatied with the problem of operator resolution in c
Fixed the new code generation code now passes the test
Add Christophe Saint-Jean to AUTHORS/aboutus. Welcome to SymPy!
Merge pull request #1914 from smichr/auth

Add Christophe Saint-Jean to AUTHORS/aboutus. Welcome to SymPy!
Fixed problem with operator resolution in c
Merge branch 'fix-piecewise-ccode' of github.com:demianw/sympy into fix-piecewise-ccode
Merge pull request #1908 from demianw/fix-piecewise-ccode

Fix c-code generation for nested conditional functions
regular derivative in latex
unit tests for hyperbolic half plane in diffgeom