Add group modal on user show page. Drop Group ID from User table. Add Membership join table for user and group. Updated seed file to delete group_ids for users.
User can now add themselves to a Group via Membership create with ajax.
Merge pull request #64 from GeneChatham/frontenduser

Frontenduser
Add Tags to Membership Table with new migration.
change schema with new migration on membership table
Add group_photo column to group table
made a partial for sponsor footer.
update gemfile with pry-plus.
Merge pull request #65 from GeneChatham/grouppage

Grouppage
Merge pull request #66 from GeneChatham/responsive

Welcome page resize for mobile, need to fix menu.
Clean up jquery on activity log form.
Clean up nav bar code.
Fix log-in page to be responsive.
Fix new user reg and edit user to fit responsive.
Make all user sign up, sign in, and edit forms resize on page sizes small, medium, and large.