Formatting
Frontend helper updates

HTML-Encode characters in {{inspect}}, simplify renderTime to just time.
Template updates

* Add default layout/error templates
* New debug link on frontend which shows renderTime and local variables
* Unset entry.content, unset password digest for current user
* Add {{next}} helper for passing through to next template
* Add docs
Add sample user public dir, nix inspect for entries
Merge pull request #38 from davidkaneda/master

Template updates