Scroll features, removal of event status field, drop downs alphabetical by last name, and color coded event planner

1. Event, Host and Musician Pages' sidebars now automatically scroll to the active Event, Host or Musician. I also changed the background on the active Host on the  Hosts page, depending on how people feel about that, I can add it to the other two

2. Removed event planning/planned field. I commented the lines out, so if we ever decide we want them back, the can just be uncommented

3. The drop down lists are now alphabetical by last name

4. On the event planner page, each musician-host row is color-coded by the status of the match.