Updated gitignore patterns to ignore eclipse project files
Added property to EmailSenderImpl bean allowing to configure smtp host
rather than using localhost as default.
Added configuration points for email sending service.
Added required property to allow correct connection to smtp server
(works/tested with smtp.gmail.com, postfix@localhost and ssl0.ovh.net)
Commented out configuration points so as to minimize impact of this work
on default configuration
Merge pull request #45 from fpoyer/issue_37

Issue 37