Use pointers instead of copying value
Removed external smtpmail dependency.

Added initial methods for handling To and partial support for FromName.
Golinted
See commit message. Re-write of the mail object removing dependencies.

1. Coverage of 100% in unittests
2. io.Reader is the only way to add attachments from the FS.
3. Email addresses will be validated in the client for To, Bcc, CC.
4. Cc support has been added.
5. Content ID support added.
6. Everything is done by reference.
7. Missing comments and Godoc :(
8. Golinted
Adding Godeps
Removed CC methods, added HeadersString Method
Removed unused tests and added test for HeaderString
Better error handling and support for headers
Added Tests for Send and newclient
Updated docs
ContentID support
ContentID support
Merging re_write

Higher functionality, unittests, more inline methods with other libs
Removed Godeps
Error checking should be done before Response checking
Merge pull request #12 from robert-zaremba/master

Error checking should be done before Response checking
Make sure to defer the closing of the body

The way the code currently was, if the PostForm successfully goes through and http.StatusOK, then you early return nil.  This means the r.Body.Close() never ran in the successful case.
Merge pull request #13 from deckarep/master

Make sure to defer the closing of the body
hipchat notification
Update .travis.yml