fix a 2.10 warning
Remove Natty, add DateParser for customizing parsing
Remove default implicit on DateParser
Fix broken tests
turning logging off for all test
Merge pull request #595 from MansurAshraf/develop

turning logging off for all test
Merge branch 'develop' of github.com:twitter/scalding into dateparser
Merge pull request #592 from twitter/clean-up-joinalgo-warning

fix a 2.10 warning
add a jar to scald.rb
Merge pull request #593 from twitter/dateparser

Remove Natty, add DateParser for customizing parsing