CC: Added the ability to parse and process the list of cc

It extracts the Cc addresses in the header.
It adds a cc method to the email object.
It will default to an empty Array if it is not present.
It will return a list of pure email addresses
Pluralizes "initializer" to be copy / pastable
Add a separator to handle '2013/12/15 Bob Example <bob@example.com>'

Closes thoughtbot/griddler#103
Merge pull request #105 from r38y/new-separator

Add a separator to handle '2013/12/15 Bob Example <bob@example.com>'
Better parsing of emails form iOS Mail client
Updates cc to behave similar to `to` and `from`
Fixed configuration example code in README
Merge pull request #111 from pftg/patch-1

Fixed configuration example code in README
Merge pull request #110 from hull/ios-reply-format

Better parsing of emails form iOS Mail client
Merge pull request #108 from r38y/cc-at-adapter-level

Makes CC a first class citizen with `to` and `from`.
Bump version to 0.6.3
Update copyright to 2014
Mandrill inbound headers are a hash not an array
Mandrill doesn't always send a text entry in the email. Protect for that and html.
Refactor cc extraction to use the same method as to
Make sure the html part of the email is used when text is not present
Code style updates to make Hound happy
Make sure event[field] is an array before attempting to map it in the mandrill adapter
Update ruby version
v0.6.4