Merge pull request #37 from stuart-warren/next

increment version number
Merge pull request #38 from stuart-warren/next

fix up jar names
Merge pull request #39 from stuart-warren/next

Next
Merge pull request #40 from stuart-warren/next

update version number
Merge pull request #43 from stuart-warren/next

Next - Bug fixes and general Field class done
Pre tag v0.5.0