Fix broken ask-price link in front page.
Fix address line in English footer.
Move JS libraries to /js/lib dir.

Makes it cleaner what's ours and what's third-party.

Also simplifies jshint task in Gruntfile.
Add proper titles for all pages.

Extract first line as a title for Markdown pages.
Use $scriba->setSubTitle() to force the title on PHP template pages.
Mark Locale::$dir attribute as private.
Login and Logout functionality.

Simple Auth class which validates our password against a hash and salt.

Tuned the styling for password field.

Login UI is available by going to scriba.ee/admin

After entering the logout button appears in the main menu.
Add 404 error pages for all languages.