Log Message:
py-Pillow: updated to 5.1.0

5.1.0:
Close fp before return in ImagingSavePPM
Added documentation for ICNS append_images
Docs: Move intro text below its header
CI: Rename appveyor.yml as .appveyor.yml
Fix TypeError for JPEG2000 parser feed
Certain corrupted jpegs can result in no data read
Add support for BLP file format
Simplify version checks
Fix "invalid escape sequence" warning on Python 3.6+
Allow append_images to set .icns scaled images
Support appending to existing PDFs
Fix and improve efficient saving of ICNS on macOS
Build: Enable pip cache in AppVeyor build
Trim trailing whitespace
Docs: Correct reference to Image.new method
Rearrange ImageFilter classes into alphabetical order
Test: Remove duplicate line
Build: Update AppVeyor PyPy version
Tiff: Open 8 bit Tiffs with 5 or 6 channels, discarding extra channels
Readme: Added Twitter badge
Removed __main__ code from ImageCms
Test: Changed assert statements to unittest calls
Depends: Update libimagequant to 2.11.10, raqm to 0.5.0, freetype to 2.9
Remove _imaging.crc32 in favor of builtin Python crc32 implementation
Move Tk directory to src directory
Enable pip cache in Travis CI
Remove unused and duplicate imports
Docs: Changed documentation references to 2.x to 2.7
Fix memory leak when opening webp files
Setup: Fix "TypeError: 'NoneType' object is not iterable" for PPC and CRUX
Setup: Add libdirs for ppc64le and armv7l