adding health information and utility methods to monitr
refined health-status api with nan changes
using NanNew instead of v8:String:New
few more nan changes
updating the README
updating example with setHealthStatus
not copying to buffer if timestamp is 0
TYPO
bumping up the version to 0.0.5
Merge pull request #13 from vsacheti/master

adding health-status api and updating the code to new nan