Add functionality for finding the protractor installation in higher-level node_module directories recursively.
Removed leftover console.logs
Add function to also update internet explorer driver.
Removed Protractor from peerDependencies since a peer dependency with version * does not add anything.
Add test for getProtractorDir
Used process.env as environment for protractor to allow placing IEDriverServer.exe in PATH from within node.
Merge pull request #27 from rogierschouten/master

Add functionality for finding the protractor installation and for Internet Explorer driver