Merge pull request #3 from nadav-dav/master

Changed Timer object to use Twitter timer, update twitter-util version
Setting version to 0.1.6
Setting version to 0.1.7-SNAPSHOT
Update version in README
Don't report ExceededTimeout if timeout is Duration.Zero
Make ScheduledThreadPoolTimer singleton, shared between FP instances
Setting version to 0.1.7
Setting version to 0.1.8-SNAPSHOT
added test to prevent the Timers thread leak