support of 3-rank tensors,
todo: stable interfaces selection
fix, discards SO3Grid
renaming of functions
background correction for popla
tensor display, fix
random quaternion, also for class rotation
minor
small fix, simulate EBSD negative values
polefiger interfaces fix: several interfaces didn't close file handler when crashing.
minor changes in interfaces
scintag interface (for thomas watkins)
bug fixes
doku
minor fixes
Florian: can you check whether this is ok?
new name convention

exportODF(odf) -> export(odf)
save(pf) -> export(pf)
export(ebsd) -> export(ebsd)

simulatePoleFigure -> calcPoleFigure
simulateEBSD -> calcEBSD
fixes +  doku
fix generic wizard
bug fixes
doku