Cleaning up HTML, working on login screen layout

Removing some unused elements from HTML. New header bar on login screen
overlaps login form, I'm working on getting the divs working correctly
Fixed overlap of headerbar

In both the login screen and packet view, the header bar could overlap
the main content. I changed the position to relative and reduced the
bottom margin.
Merge pull request #3 from thepacketgeek/development

Adding new Dev features