add basic fields for active penalization
add dt_fixed, move p(t=0) and comment it (you don't need it, it seems)
add dt_fixed
active penalization working!! some slight difference to matlab solution. parallel.
finally modify save fields to take fewer arguments
savefield & savegif have consistent syntax
add second order reduction to spectral operators
skip FFT test when doing pseudo finite differences
warn when using FD mode
RK2 classic does not use active penalization
add modified PPE, cleanup us (active penalization), document PARAMS.ini, no time dependent masks allowed
bugfix: the lamballais case deleted parts of us, which caused dipole to run in passive mode
move computation of normal derivatives field to subroutine
add first version of basis-function based construction of us
move compute_normals to subroutine
bugfix: parallelization problems in spectral operators when runnning in 2nd order mode
cosmetics
chasing a heisenbug
bugchase
bugfix: u_smooth was not initialized