Add Devise logo
Reduce logo dimentions
Crop the logo a bit more :bomb:
Update badges
Run image optimizer on the logo (i'm done)
updates source url to use https
Merge pull request #2308 from vfrride/patch-1

updates source url to use https
Improve documentation on sending delayed emails

There are a couple of gotchas in the existing documentation
about the `send_devise_notification` hook.

1.  The `after_commit` callback can be called multiple times
    so you should clear the array otherwise any additional
    invocations will trigger extra copies of the email.

2.  The `after_commit` callback is only called when a record
    is created or updated so you need to check for `new_record?`
    or `changed?` before adding it to `pending_notifications`
    otherwise it's okay to send it immediately.

The `new_record? || changed?` condition is necessary because
the latter isn't always true for new records, e.g:

    >> User.new.changed?
    => false

[ci skip]
Merge pull request #2311 from pixeltrix/improve-delayed-email-documentation

Improve documentation on sending delayed emails
Allow explicit configuration of http auth key

- Fix basic auth case in which authorized_keys is configured as hash
- Duplicate existing functionality when http_auth_key is not explicitly
  set
Fix `send_devise_notification` arity in the documentation.

[ci skip]
Merge pull request #2315 from neo/http_auth_key

Allow explicit configuration of http auth key
Add license to gemspec.
Merge pull request #2331 from yxhuvud/master

License information to gemspec.
[ci skip]
Update recoverable.rb

Fix type-o.
Merge pull request #2340 from scottjacobsen/master

s/reseting/resetting

[ci skip]
Merge branch 'master' into rails4
Use the latests Rails version