accept array of itx.Element objects or strings
allow caller to set to and type attrs of xmpp.Element
Add test and correction
remove commented code cruft
make reply a synonym of send when a message is an Xmpp.Element
Merge pull request #22 from martinwalsh/master

Add the ability to send custom Xmpp.Element objects as messages
Bump version number.
Merge branch 'master' of git://github.com/markstory/hubot-xmpp
clean up