Remove success messages for login and signup
Merge pull request #124 from JohnThomson/feature/removeSuccessMessages

Remove success messages for login and signup
change colors on notifications
Merge branch 'master' into develop
Add an old-installers page that reads from amazon s3 and renders a table of links. TODO: make this a child of the downloads state.
Make search button clickable
Make the "download app" page and controller into "installers" to differentiate from book download, and incorporate the old versions dynamic page function as a child state (though it is not technically a child, since "installers.old" did not work.)