MenuEditor extension1.6.0: searcheable contenttypes
Merge pull request #1165 from xiaohutai/master

Add an extra check when `contentowner` of an record is not set.
Handle multiple name keys in select contenttype
Set a better default date for 'datedepublish'. Fixes #1164.
Merge pull request #1163 from bacbos/ext-MenuEditor-1.6.0

MenuEditor extension1.6.0: searcheable contenttypes
Removing wrong 'template cache' option. Should fix #1147.
Bumping version to "1.6.0 RC 3"
Ensure proper datedepublish format
Disable dump() in Twig when debug = false
Expose Twig functionality more safely in content values

Bolt now exposes a stripped-down context to Twig when used inside a
content value (typically, a HTML body). Features that could potentially
leak internal application state aren't available, and only extensions
that explicitly report themselves as allowed in user content can hook
functions into this restricted Twig context.

Among other things, this means the following are not available inside
user content:

* The `request` object (because it may leak session data and HTTP-only
  cookies into the HTML and JS context)
* The `dump()` function (because it can expose private members of
  various variables, e.g. `app` or `record`)
* The `redirect` function (because it doesn't make sense for
  user-provided content in a Bolt page to cause a redirect)

For detailed information about what is and isn't available, check the
TwigExtension class.
Removed redundant code
Making 'disabled users' stand out a bit better.
Merge pull request #1167 from bacbos/master

Ensure proper datedepublish format
Don't display backtrace on "Fatal error" pages, unless you're an authenticated user. See #1166.
Merge branch 'master' of github.com:bolt/bolt
Fix to regression of namespace case
Merge pull request #1170 from rossriley/minor-fixes

Fix to regression of namespace case
Fallback for when sortorder is explicitly set.