Added Models, Forms and Frontend

Added custom user authentication model, added models and forms for
manuscripts and review periods, added frontend HTML/CSS/JS.
TOS Doc First Draft

First draft of terms of service document
Made agreement form go away

Made it so that the agreement form goes away once you agree to it.
Updated Upload and Review pages

Updated frontend stuff and backend form submission. Currently mediocre
form submission. Still need to figure out document uploading.
Basic Admin interface

Added basic admin interface for developing admin privileges
add user requirement document (feedback)
add mockup document (partially revised)
add some html demo (still working on)
add activity diagram in RequirementsModel
Data Model
change organization of design documents
Home page was added and footer was modified
style change; add admin demos
update login; backup old login