Fix #1: regex_iterator will infinitely recurse if an empty match matches
Fix broken test: option groups without a newline between them were not being detected
Fix compiler warning on unused 'inline'
Fix #2: gcc-4.9 didnt like one of the decltype constructs
README: adjust the version number of the port.
Merge pull request #4 from docopt/fix-2

Fix #2: Adjust a decltype to make gcc-4.9 happy
Merge pull request #3 from docopt/fix-1

Fix #1: Hangs until killed