changes for new settings page
remove yui_body_header + add menu_hide_settings
remove all the js from the homepage form related to settings, it all happens in core now
add js class selector for the search__hidden div in the header search form
remove ref to g .js file, no longer need it for settings page
Revert "remove ref to g .js file, no longer need it for settings page"

This reverts commit 121551da2fc61fb16a0bba6fe4af952eeae82eea.
fix typo in env var
merged master
Merge pull request #87 from duckduckgo/brian/settings-page

Updates for new settings page