refs #6534
- this PR assumes that we are now saving usernames only in the database for twitter & facebook
- adds a new social links utility which can generate twitter & facebook urls from the username
- adds a {{twitter_url}} and {{facebook_url}} helper which uses these
- adds a full suite of tests for the helpers & utils
refs #4993, #5073
- Removed nonexistent helpers siteDescription and bodyClass from admin templates
- Changed password.hbs to private.hbs to match the route name
- added a new input_password helper for rendering the password input with the correct properties
- removed the forward input as this can be handled via urls only
- moved 'private' to routeKeywords
- added 'private' context
- minor update to text next to the password in settings
no issue
- Split theme helpers into individual files for each
- Do the same for tests
- Have utils to share some things between them
- Move assetHash onto config
