Completed MovieDetails.aspx

Warning: Delete your CrowdMovieTag.mdf file before using this commit

Additions:
- New Folder: Logic/ This folder contains the application logic files,
i.e. adding tags and movies to the DB
- MovieActions.cs: This is a Utility class that conducts database
additions and deletions. Currently it Adds a Tag and TagMap to the
database
- Models/TagFromQuery.cs: A class that contains all the information that
a User cares about for a tag: its label, its ID, its Movie, and its
Score (Score is stored on TagMap)

Modifications:
- Issue #12: individual_Movie is now MovieDetails:
- Added Dynamic retrieval of movie based on Query string
- Added Dynamic retrieval of Tags for the move based on the Query string
- Added UpVote and DownVote functionality
- Uses MovieActions.cs to actually commit the Vote
- Added "AddNewTag" functionality
- TODO: modify this to add an existing tag to the movie

Notes from Last Commit:
Additions:
- TagMap.cs: Creates a table in the database that connects a tag, user,
and a movie.

Modifications:
- Models/Movie.cs: Added back Year and Description
- Models/MovieContext.cs: Added TagMaps table
- Models/MovieDatabaseInitializer.cs: Added initializer for TagMaps