Updated for the latest XD version

* Updated to XD 1.0.0.M7
* Removed content related to $XD_HOME since it's not necessary to run this example.
* Removed content related to TypeConversion as it is no longer relevant to this example
* Removed JSON sample in output file. Nice to have, but I would have had to replace since the JSON schema is not the  same as the previous version. I was having a hard time coming up with an appropriate tweet in english. If people feel strongly about this, I can recreate a pretty-printed sample. 
* Some minor wordsmithing