Octopus 1.6 with direct download and release creation improvements

Octopus Deploy 1.6, released on May 6, 2013, introduces several key features, marking the final major release of the 1.X series before the focus shifts to version 2.0. This update includes direct package downloads by Tentacles from the NuGet server, enhancing efficiency by reducing wait times during deployment steps. An improved release creation screen has been implemented, and support for proxy servers, including those with basic and integrated authentication, has been added. The release also addresses the limitation of accessing step variables only within package steps, now allowing them to be used in email and manual steps by indexing the variables. Additional bug fixes and changes are detailed in the release notes, providing a comprehensive update for Octopus Deploy users.