Removed warnings for tight_layout (get rid sooner or later!)
And another environment update (pyFFTW now again accessible via conda!)

dataset: plot_mask now takes kwargs.
fielddata: pad now allows mode changes.
phasemap: fixed bug that did not properly scale vmin and vmax with unit.
io_vectordata: added support for .vtk, .tec files and new interpolation.

And deleted/ignored pyramid.egg-info

Signed-off-by: Jan Caron <j.caron@fz-juelich.de>

docs: moved up one level.
plottools: added some default label sizes.
version: added to VCS and added a TODO (switch to Git)
fielddata: added rot90 for ScalarData, lot of small changes.