Fixed photo collisions.
Merge branch 'property_use_cases'

Conflicts:
	Gemfile
Added profile tab to header
Added validation to the form and flash messages
Fixed flash
removed back button
Fixed ugly spacing in Gemfile
REmove max rent from seeded admin and owner users, because that didn't make sense.
Merge branch 'master' of https://github.com/CraigBryan/SEG3102Project-fun
Merge branch 'master' into login
Added username to users
Added usernames to users and changed login to login with username
Fixed customers being able to view deleted properties.
Also, a stray Property.all was making the search filtering not work.
Changed "Destroy" header to "Delete"
Fixed login to include username, fixed create user form, and fixed adding user name column to users table
Added user name or email to login
Only affordable properties can be added to a customers visiting list.
Merge branch 'visit'
Added styling