first commit of lesson 2

the temperature conversion YUI module is now pulled in as an NPM
http://search.npmjs.org/#/yui-convert-temperature
removing artifacts
remove procfile
Update README.md
added mojito 0.4.0 hello world example
Client Server Example

adding client server example and twitter api example skeleton
adding twitter api call example
git ignore
added suppot for mojito 0.5
added support for mojito 4&&5
chagned value on purpose for test failing
jlint errors for showing