minor fixes. Safer postgres casting. Validate max chars supports foreign characters (multibyte characters), forms can now have custom css classes using ->addCssClass()
Merge branch 'master' of github.com:jimmysparkle/atsumi
Merge pull request #17 from jimmysparkle/master

couple of commits
Added atsumi_Interval class to the calendar utilities. Useful when doing interval stuff in postgresql. Updated postgresql casters (may need testing).
Merge pull request #18 from jimmyff/master

new atsumi_Interval utility class
added a few useful methods to interval cass, fixed error in caster
added image picker element back in... oops
Merge pull request #19 from jimmyff/master

image picker restored and small addition to interval utility class
Merge branch 'master' of git://github.com/rocketware/atsumi

Conflicts:
	classes/database/adapter/postgresql/caster_PostgreSql.php