Merge pull request #21 from kevsherman/landing_page_design

Landing page design
seed assignments
Merge pull request #22 from kevsherman/assignment_seeding

seed assignments
fixed navbar
Merge pull request #23 from kevsherman/assignment_checkbox

fixed navbar
guest lists populating in alphabetical order
Merge pull request #24 from kevsherman/bugfixes

guest lists populating in alphabetical order