Add basic unit tests for travis
Add CI badge and download info [ci skip]
Fix grayscale conversion code to match libjpegs YUV
Version bump to 1.0.1 for new release.
Support reading and writing from/to sdtin/stdout. Fixes #1.
Add a note about using ladon for parallel processing.
Add image comparison
fix readFile for stdin stream
fix realloc invalid pointer error
can specify make install prefix
Merge pull request #4 from f-kubotar/make-prefix

Specify install prefix. Fixes #4.
Remove unnecessary malloc and ensure buf passed to readFile is NULL
Merge branch 'f-kubotar-stream-read'. Fixes #3
Add support for PPM input to jpeg-recompress
Add unit test for PPM support
Update versions to 1.1.0
Re-add removed malloc call, apparently required on Linux
Add more instructions for building on Windows
Add initial support for mozjpeg
Attempt to fix Travis build