projector: RotTiltProjector implemented!
quaternion: New module providing quaternions!

magdata: added convenience functions for flipping and rotating of magnetic
         distributions, fixed bug with ar_dens.
phasemap: now also has a mask which will be used to construct a 3D-mask for the
          magnetic distribution during reconstruction. Added setter/getter.
          Added copy(), scale_down()/scale_up() convenience functions.
          !CAUTION! Only NetCDF4 files save every new parameter!
projector: Fixed hidden bug in X/YTiltProjector, which was problematic during
           tilts over 360°. Now uses linear algebra (much clearer!).
           get_info() function now can be used non-verbose (for filenames).
dataset: added several setter/getter, addes set_3d_mask() for simple 2D tasks,
         renamed mask to confidence (for Se_inv construction)
tests: updated to include the fixes and new functions introduced in this update!

tests: implemented the missing TestCases!
dataset: mask is now created if not given!
phasemapper: guaranteed np.float32 format for RDRC (expected by Cython)
projector: now uses fft.FLOAT

docstrings: updated!
costfunction: CFAdapterScipyCG obsolete, deleted estimate_lambda()
dataset: use_fftw and threads obsolete
diagnostics: implemented stuff... much stuff...
fft: Docstrings and implementation of threads
magcreator: fixed bug in slab (dimension mix-up)
phasemap: plot now also returns colorbar
reconstruction: PrintIterator and optimize_simple_leastsq obsolete
regularisator: Docstrings
scripts: minor modifications
scripts - reconstruct_random_pixels: now use optimize_linear
testcases: analytic, compliance, kernel, magcreator, magdata, projector

scripts: changed scripts to work with the new syntax of the package
PhaseMag and MagData: added load and save options for NetCDF files
MagData: changed 3D-plotting to use mayavi (faster and better looking)
test: added more TestCases for various modules
phasemapper: added computation method to use mx and my (now standard)
compare_method_errors: first draft of script to compare the different errors