v0.5.0

• Drop Python 3.4. #121
• Remove VIGRA support. #122
• Fix Cython rank type to double. #120
• Use conda-build compiler syntax in recipe. #124
• Use NumPy's ndindex instead of itertools. #123
• Make Cython import a cimport. #125
• Fix Cython half_length type to size_t. #126
• Use Python 3 division on Python 2. #127
• Make quotes consistent. #128
• Fix half_length name in lineRankOrderFilter. #130
• Simplify fused type wrapper lambda. #131
• Cleanup the for-loop a bit. #132
• Use NumPy's copyto to copy image to out. #133
• Check that rank is between 0.0 and 1.0. #135
• Validate image. #136
• Drop check for non-negative half_length. #137
• Drop extra blank line. #138
• Remove lambda wrappers. #139
• Use ndarray type. #134
• Refactor reused loop variables. #141
• Use float pointers in Cython/C++ binding function. #142
• Fix-up some errors. #140
• Use pointers in ndindex. #143
• Refactor single and double precision while-loops. #144
• Fix-up some errors (pt. 2). #145
• Simplify looping code and drop unneeded code. #146
• Tidy up C++. #147
• Minor C++ optimizations. #148
• Rename image to a. #149
• Use size_t indices. #150
• Drop Windows 32-bit. #151