DTVP - Change venue select to MultiSelect.

[anantgirdhar-zz]

Change the field type in the model. Also change all validations and processing.

[anantgirdhar-zz]

Venue select has been changed to MultiSelect. Corresponding changes have been made in models and views.

[anantgirdhar-zz]

SubEvent add, edit, delete works.

[anantgirdhar-zz]

All logic has been changed to implement the ManyToMany relationship. Only the template rendering needs to be changed.

[anantgirdhar-zz]

Template rendering has been changed.

[anantgirdhar-zz]

By Venue rendering concept needs to be changed.