jhead instructions
Merge branch 'autorotate'
use jpg for original when testing orientation
Merge branch 'autorotate'
.travis.yml and Gemfile
try mac worker using mainly ImageOptim.app binaries
switch backup to linux worker, install using apt-get (no pngout yet)
getting pngout
Merge branch 'add_travis'
jruby File.rename does not accept non ImagePath (Pathname)
overcome wrong implementation of Process::Status in jruby