add content length header for deletes, nginx requires this
extract uppercase method into a variable
Fixed #93 - status command is broken
Merge branch 'master' of https://github.com/haggyj/nightwatch into haggyj-master

* 'master' of https://github.com/haggyj/nightwatch:
  extract uppercase method into a variable
  add content length header for deletes, nginx requires this
refactored the content-length header logic in request lib
version number bump