Updated MovieDetails.aspx and retrieval of votes
Changes:
- MovieActions.cs: Calculated and stored a new value for the score of a TagApplication when a vote is cast
- MovieDatabaseInitializer.cs: Added updating of a TagApp score on initialization
- TagApplication.cs: Changed Score to a required field
- MovieDetails.aspx: moved the VoteStatusLabel to after the table of tags
   - Removed old static table
   - CodeBehind: Small change in the validation text