Fix #795

fix for  #747

flexible the build scripts and add a freebsd build script

Initialize unset git user.email / user.name correctly; fix Dockerfile

The previous setting would cause all repo creations to fail, as
described in issue #328.
The previous commit also resolves this issue, but it seems saner to
create the user in the Dockerfile than at runtime.

The previous behavior was to set default values only if user.name was
not set, but to always set it for both. This only sets a value if there
wasn't one; this fixes cases where someone has a user.name but no
user.email (see included Dockerfile) or someone has a user.email but no
user.name (before the email would have been over-written).

Use the new build env on Travis

spellcheck

http://docs.travis-ci.com/user/workers/container-based-infrastructure

Golang x text encoding

Create English locale keys for multiple e-mails feature

Also, change all current 'emails' to 'e-mails'.
Still todo: some CSS for the user/settings/email page, but that is not my specialty

Add a Gitter chat badge to README.md

Fix for wrong email query

Changing EmailAdress.OwnerId to EmailAddress.Uid should have accompanied this change

Correct usage of FROM in email creation

Multiple emails

Remove standard mailer port lines

The User member of a message is not needed anymore.

The from that is send to the server, should always be the "system" from. This is also called the Bounce address http://en.wikipedia.org/wiki/Bounce_address

This lines got committed by accident. They do actually nothing, as SplitHostPort will give an error if port is not given.

Crammd5

Rewrite of SendMail function

The SendMail function is rewritten and has the following new functionality:
 - It is optional to skip verification of keys. The config option SKIP_VERIFY is added
 - If the port is 465, or ending on 465, the TLS(/SSL) connection is started first.

All basics are implemented. Missing are the right (localized) strings
and the page markup could have a look at by a frontend guy.