[update] Team model now allows blanks in name, color, and email fields
[update] fixed issues with player_ratings - report id optional, ratings type is an integer
[update] league dates are now datetimes (include a time)
[fix] was using the wrong choices object for jersey size
[update] league state change to be open regardless of date for admins if "open" or "preview"
[update] little code cleanup
[update] changed some gray colors
[update] current step in registration process is now highlighted blue
[update] proofread
[update] changed league start and end back to date fields
[update] update team notes styling
Merge pull request #49 from rdonnelly/master

updates to league dates and registration progress