PPC platform specific library files
Merge pull request #473 from wiredfool/ppc

PPC platform specific library files
Add arch support for pcc64, s390, s390x, armv7l, aarch64
Merge pull request #475 from manisandro/arches

Add arch support for pcc64, s390, s390x, armv7l, aarch64
Add history
Update Image.py

docs update/fixes
Merge pull request #478 from d-schmidt/patch-2

Update Image.py doc
Add test for issue $479
Merge pull request #480 from cgohlke/patch-2

Add test for issue #479
Fix failing Travis CI due to invalid YAML
Merge pull request #481 from cgohlke/patch-3

Fix failing Travis CI due to invalid YAML
fix UnboundLocalError: local variable 't' referenced before assignment
Merge pull request #487 from homm/master

fix UnboundLocalError: local variable 't' referenced before assignment
do not use loseless abi until it supported
Fixed typos in the porting guide
Merge pull request #497 from zsiciarz/patch-1

Fixed typos in the porting guide
JpegImagePlugin._getexif expects no exif key in info dict, not None
Merge branch 'fix-typeerror' of https://github.com/homm/Pillow into webp_exif
Test for PR#498
Merge pull request #499 from wiredfool/webp_exif

*  Don't send None as exif to JpegImagePlugin._getexif -- homm 
*  Test for fix -- wiredfool