Removes SharpZipLib from package deps.
Removes SharpZipLib from package deps.

cloudfoundry/IronFrame,stefanschneider/IronFrame,cloudfoundry-incubator/IronFrame,cloudfoundry-incubator/if_warden,stefanschneider/IronFrame,cloudfoundry/IronFrame,cloudfoundry-incubator/if_warden,cloudfoundry-incubator/IronFrame