move statics to top as per code review
oops repointed webapp example to Tomcat; changing back to JBoss
using simplified syntax for creating keys and sensors (i.e. static newKey(...) - see classes ConfigKeys and Sensors), and using TypeToken in Sensor and ConfigKey
code review, call it newConfigKey not newKey, and other misc clean-ups
Merge pull request #790 from ahgittin/misc

new static syntax for sensors and config keys, plus tidy