FIX: recipe2 was crashing because site coordinates were not passed correctly.

They were passed as a tuple of arrays, not a tuple of floats. Also made a flat
script without a __main__ section because this was redundant.

MIN: Slight changes in the default parameter values for classify_echo_fuzzy.

merged branch testing

MIN: Added cross-polar correlation coefficient as decision criterion to fuzzy classify_echo_fuzzy.

Before, we only used the texture of rhohv. Now you can also use rhohv directly as a decision variable.

classify_echo_fuzzy also returns a boolean array which indicates where all the...

FIX: Two bug fixes in plot_ppi_crosshair.

Linked proj4_to_osr to georef module and renamed variable projstr to proj.

MIN: Added some debug code to the fuzzy_echo_classification.

FIX: changed projection keyword in plot_ppi and plot_ppi_crosshair back to proj

Merged feature/georef into default

Removed a few calls to polar2lonlatalt by polar2lonlatalt_n
(because I think this is the best routine...)

--HG--
branch : feature/georef

FIX: removed hardcoded site coordinates from plot_scan_strategy code
changed the api, removing radaralt keyword and replaced it by a obligatory site
parameter.

--HG--
branch : feature/georef

DOC: added new functions to documentation, removed some of the deprecated ones.

--HG--
branch : feature/georef

FIX: Two bug fixes in plot_ppi.

Renamed variable proj to projstr.

Linked proj4_to_osr to georef module.

--HG--
branch : feature/georef

ENH: autoconversion of reproject-arguments to arrays

--HG--
branch : feature/georef

FIX: fixed several bugs in _z2rEnhanced

ENH: made plot_ppi set axes aspect to equal

ENH: atten.correctAttenuationHJ: - introducing cap-mode for capping PIA-values in case of attenuation-overflow as proposed by Harrison, Driscoll, Kitchen (2000)

FIX: atten.py: - enabled to calculate iterative based attenuation-correction-algorithms with just one iteration without dividing by zero.
- removed some typos

FIX: - made possible to calculate iterative attenuation-algorithms with one iteration without divisions by zero
- removed some typos

FIX: removed +ellps parameter from dwd-radolan definition.

... as it leads to the ignoring of the +a and +es parameters.
see the wradlib-dev discussion a few days ago for details.

--HG--
branch : feature/georef

DOC: Adjusted documentation to reflect refactoring.

Changed the doctest output because now the example uses a slightly different
earth radius (c.f. commit 67ddf81097f611be629b678d05c034a1683bb90a)

--HG--
branch : feature/georef