Addition of plot_field for FieldData as alternative to quiver plots.
PhaseMap phase plot now has an option to cut outliers (e.g. difference plots).
IO of PhaseMaps now can handle different file extensions in one loading.
Phasemap creator GUI now uses IO loading.
Replaced flatten with ravel (memory efficiency).
Renamed non constant variables to lower case (not UPPER CASE anymore).

New API module unclutters the namespace (import pyramid.api as pr).