provide more doctests for orbit_list(), values() and two_torsion_values()
Merge branch 'devel' of https://github.com/s-opitz/psage
Fixed typo and added (and removed) some tests
merged with master
Changed definition of double complex constants to try to fix problem with compiling
Merge branch 'master' of github.com:fredstro/psage
Changed definition of double complex constants to try to fix problem with compiling
Changed definition of double complex constants to try to fix problem with compiling
Changed definition of double complex constants to try to fix problem with compiling
Changed definition of double complex constants to try to fix problem with compiling
Changed definition of double complex constants to try to fix problem with compiling
Changed the definition of CMPLX to be compatible with old gcc versions
Merge remote-tracking branch 'fredrik/master' into devel

Conflicts:
	psage/modform/maass/multiplier_systems.py
FIx merge.
(Hopefully) Fixed several bugs with respect to the coordinate system used. There was a bug reported by Sven Möller that caused _action_of_Gamma0 to fail because this method still used the old ._L list of elements in WeilModuleElement. However, there werde quite a few bugs regarding the use of the el_index etc. - methods. This is all due to the fact that can_coords=True has to be used when the generators and their orders are used for the coordinate functions. I think this should be changed to using the elementary divisors instead. But for now, I just fixed the bugs (ugly...)