Added link to travis-ci page
Merge pull request #151 from Bouke/patch-1

Added link to travis-ci page
Merge pull request #150 from d-schmidt/master

fixing save of transparency palette png-images
Add tempfile for test output
Merge pull request #153 from manisandro/tempfile

Add tempfile for test output
replaced tabs with space in _imaging.c
Fixes an uninitialized value for an optional parameter.
Effectively, this prevented any remote scanners to be discovered.
Merge pull request #155 from dwrobel/master

Fixes an uninitialized value for an optional parameter.
Significant performance improvement of `alpha_composite` function.
approximate test for lossy image writing
py3 as well
JpegImagePlugin sets bufsize for optimized images
Precision improvement. ≈60% performance lost
speedup. divisions replaced by shifts.
Merge pull request #158 from wiredfool/maxblock

JpegImagePlugin sets bufsize for optimized images
Merge pull request #157 from wiredfool/webp_tests

approximate test for lossy image writing
Merge pull request #156 from homm/master

Performance improvement of alpha_composite function
Precision improvement. No performance affected.
Merge pull request #159 from homm/master

Precision of alpha composite. Again.
added tests to cover save of four different png transparencies