Maxima represents exp(x) as "%e^x". This enhances the
parser to recognize the special symbol %e and have any
power function with it as a base return exp instead of
pow.

Improve ConstantToNumpyConversionMapper: Allow to-numpy conversion of complex values with zero real part

Update to symengine-0.3.0

See merge request !7

Gitlab CI: Use maxima installed from Conda (closes #4 on gitlab).

Closes #4

See merge request !6

This reverts commit ef8097f5.

(https://github.com/conda-forge/ecl-feedstock/issues/5)

Fix few typos

Maxima osx fixes

Closes #3

See merge request !4

1. Disables echo, which seems to cause waitpid() to block on OS X.
2. Fixes long line handling via stty -icanon.

sending quit command (closes #3).

SymEngine interop

Closes #2

See merge request !3