Darmonpoints

**Added:**

* The Theta function can now be evaluated at arbitrary points or divisors.

This release does not add much functionality, but it exists so that it matches the PyPI version.

Much more functionality has been added. The code is now capable of working with groups other than Gamma_0, although this functionality is not directly available from the scripts.

The code is also able to compute equations for genus-2 hyperelliptic curves whose Jacobian is a 2-dimensional factor of a modular Jacobian, corresponding to a modular symbol with quadratic eigenvalue field. This is still work in progress.

Fixed lots of bugs.
The code is now more robust, and computes even in situations where the discriminant of the quadratic extension is not coprime to the conductor.
It also includes some functionality that helps in computing p-adic L-invariants of genus two curves.

This release contains working code to compute Darmon points and elliptic curves over number fields. The code has been used to prepare tables with many curves and has parallel functionality for this. Still, use at your own risk!