add util method for getting a rails zone for a tzinfo zone
add util method for getting all rails zones with current offsets
make the key the olson name and add rails name as displayName
add a rest endpoint for the timezone list
code review issues
add rest client method for getTimezone and add test that uses it
code review issues
wire up user create and update to use the rails timezones
update to 2013-04-20 version of tzinfo db
proper tz.Date construction
code review issue
Merge branch 'timezone' of git://github.com/stuartf/Hilary into timezone
Doc fixes