added layout.erb, updated search bar with inner text and reconfigured login button for hover/active link responses
updated the search bar with the clean/scruffy/dirty filters
more changes to the html and css
Merge pull request #13 from gopher-snakes-2013/theprettiestbranch

added layout.erb, updated search bar with text, reconfigured login button
rearranged the dropdown menu, added directions for what to do with it, added search bar text
Merge pull request #14 from gopher-snakes-2013/theprettiestbranch

updating homepage with instructions for how to use filters.
fixed index.erb merge conflict