Create client.nb_NO.yml

Norwegian translation first take.
Update client.nb_NO.yml

Started work on "invited" translations.
Update client.nb_NO.yml

First post, Mute, Unmute, Last post, are they meant to be translated?

finished down to composer
Add 'dynamic favicon' setting
extra spec
Updated Dutch translation
Merge pull request #990 from sanderdatema/dutch_translation

Updated Dutch translation
Add onebox for GitHub pull requests
When rebaking, update the links even if the cooked content didn't change. Someone
might be linking to us even if we don't have a link.
Extract callbacks and validations for Post

Move Post create callbacks to PostCreate
Extract Post validations
Move stripped_length_validator to lib/validators
Merge branch 'master' of github.com:discourse/discourse
Merge pull request #991 from chrishunt/add-pull-request-onebox

Add onebox for GitHub pull requests
Merge pull request #988 from chrishunt/add-dynamic-favicon

Add 'dynamic favicon' setting
Merge pull request #995 from novemberkilo/master

Refactoring Post model
Merge branch 'master' of github.com:discourse/discourse
Added admin:create rake task
Update github commit onebox to match pr onebox
Remove html rendering test for commit onebox

This is a very brittle test. We want to be able to change our markup
without breaking tests.
Some minor cleanups

1. Change map to keys
2. Remove overshadow
3. Remove var
Merge pull request #997 from chrishunt/update-commit-onebox

Update GitHub commit Onebox