...rs to HTML entities.
I found this limitation when trying to post a message with the format User Name <email@example.com>.
This simple patch fixes that.
User Name <firstname.lastname@example.org>
Avoid HipChat message restrictions by converting all applicable chara…
…cters to HTML entities.
Turns out this is dangerous if any client already escapes the message. The proper way to handle this would be to set the message format to text, since it is considered HTML by default (thus email@example.com is properly stripped). See https://github.com/mojotech/hipchat/pull/19