Bump to version 0.1.0; our first release in the new Beta release series!

                                   Hooray!
By default, we want to build the xpi and not erase files
Update compatibility in install.rdf
Merge remote-tracking branch 'upstream/master' into debian-master
Disable the confirmation before sending email (user can opt-in if required)
Merge remote-tracking branch 'upstream/master' into debian-master