first pass at ui-redesign

based on Laura's sketches
rails styling changes

while investigating caching page issue
set root path in routes.rb

instead of using javascript to redirect when
requesting the root url
page caching

moved to public/cache directory
works in development mode
remove text editor files from git
remove text editor files from git
more ruby code style changes

as I investigate issues in code re: re-design
Created landing page similar to mockups
stylesheet cleanup
ruby style changes while investigating
issue with menu scripts
style changes

in view and in code
do not init menu for welcome/index path
Handle search as normal form submit

to consolidate logic of where to process the
search request
fix small issue with adding nil to Array

plus a whole lot of ruby style cleanup
first pass at updating menus
update favicon link

and additional style changes
added menu to welcome page
fix ui

styles and markup
ensure javascript does not throw errors
ignore generated svg files
added welcome page images