Fix hash ordering bug in flip test

The test was relying on the clashing values coming out in a particular order, which only happened to work before, and is definitely not the case on perl 5.18.
Merge pull request #20 from ilmari/patch-1

Fix hash ordering bug in flip test
bump version to 1.25
remove 'use feature' from t/synopsis.t.  that was cut and paste from the docs but wasn't actually necessary there.
bump to 1.26
bump version to 1.27 just to try to get a new .tar.gz up on PAUSE
since the one up there grew an entry for './' for some reason
that's owned by root and clobbers the file permissions on directories.
bleah.