Enable lower dim. simulations with Nel=1, p=1 and periodic bcs
Solves the following issue(s):
Closes #209 (closed)
Core changes:
Simulations with space dimension <3 can now be run efficiently, by setting Nel=1, p=1 and periodic bcs in the respective directions.
Upgrade to new psydac 0.1.8; incorporates Elena's changes for directional derivatives and a fix to init_interpolation
for the case of just one Greville point.
squeeze_out=False
had to be set as the new default in push/pull and mhd equil.
Model-specific changes:
None
Documentation changes:
None