FIX: correctly calculate azimuth difference

Merge pull request #196 from kmuehlbauer/add-open_vector

MIN: add `open_vector` to io.gdal

FIX: shapefile extension

MIN: add `open_vector` to io.gdal, deprecate `open_shape`, add `test_open_vector`, use `gdal.OpenEx`

Merge pull request #195 from kmuehlbauer/fix-decode_kdp

FIX: divide by wavelength in decode_kdp

FIX: divide by wavelength in decode_kdp

Merge pull request #194 from kmuehlbauer/fix-191

FIX: raise Exception, when file is corrupt (iris-reader)

FIX: raise Exception if file is corrupt

MAINT: Fix pypi url (#189)

MAINT: Update Release, Set ISRELEASED True

MAINT: Update release notes 0.11.0 (#188)

* MAINT: Update release notes

* FIX: flakify

Merge pull request #187 from heistermann/fix_comp

Consider NaNs adequately in weighted composition

Consider NaNs adequately in weighted composition

FIX: issues with init_next_record (multiple sweeps) and exit condition, move dtype checks into if-switch (#186)

FIX: raise EOFError when reading corrupt RADOLAN-files, close #184 (#185)

FIX: docs clone root (#183)

* FIX: adapt docs, remove `cloning of root environment`

* FIX: minor edit

* FIX: re-add print of notebook-name in testrunner.py

* FIX: fix scatter-plot in wradlib_ipol_example.ipynb

Add yoffset argument to plot_rhi

WIP: read all sigmet headers and products (#177)

ENH: read all sigmet headers and products

Merge pull request #176 from kmuehlbauer/get_sweep_headers

ENH: refining loaddata switch

ENH: added docs and tests