Configurable backend content listings.
Moved custom listing templates form /app/config/view to /app/view/custom/
Patched menuHelper to allow for more deeply nested menus
Updated theme templates to support deeply nested menus
Some PSR-2 style cleanup in src/Bolt.
Manually merging in @rarila's changes. Closes #746
Comments for caching options in config.yml.dist
Merge pull request #754 from bacbos/recursive-menus

Patched menuHelper to allow for more deeply nested menus
Merge pull request #759 from rarila/psr2-cleanup

Some PSR-2 style cleanup in src/Bolt.
Use fallback for user/owner with pre-1.4 records.
Show correct username.