added validations for band_name, home_town, genre.
added validation for audio samples table
changed the header for band page
got rid of extra columns on bands index
changed the edit page for bands
changed the bands index page
changed new band button to signup your band
changed header for show bands page
changed buttons in bands show page
changes header for events page
changed the title of the back button on events new page
changed header for events index
changed the title of the create new event button on events index page
added validation for member
added validations to the events signup
added validations for the band member signup
cleaned up code
cleaned up code
added logout view to see if the logout error was fixed.
got rid of the logout test page