handle the special property ip correctly when setting it on people profiles
Revert "Force requests to use always use http"

This reverts commit b93c6f3342b7e1f30ec4a4cb1469050b113ed0bb.
Merge branch 'handle-ip-people-special-property' of https://github.com/sspinc/mixpanel-node
Bumped version to 0.0.14