New javascript file
Creates TableSelector object.
Selector for form changes
Allows pop-up from change-role button
Adds selected-row styles
Sends item count to the view
Includes entity repository CategoriesRepository
Cretes new entity repository with findAllItemsByCategory method
Displays item count for category
Adds if statement for styles
Adds class change-role-window to role change button
Merge remote-tracking branch 'origin/master'