Merge pull request #1858 from lukelarris/patch-1

Made it easier to paste command in MongoDB console
Merge pull request #1857 from a5mith/patch-1

In response to lukelarris bug report
closes #1855
fix for wrapper
latest translations
closes #1862
closes #1864

doing andrew's //todo's since 1991
special handling for filter:app.load
updated module deps for widget-essentials and markdown
some unused vars
plugins:loaded - using emitter class instead
optional callback for registerHook
allow core to tap into NodeBB's hook system, closes #989
use the new $text query from mongo 2.6
Merge branch 'master' of https://github.com/NodeBB/NodeBB
Update README.md
docs update
Merge branch 'master' of https://github.com/NodeBB/NodeBB
plugins and themes can now define their own custom language strings. closes #1865
updating docs for adding i8n to plugin/themes