Modifies the zip job to install to a saner directory, and clean away that directory if it exists before writing a new .zip file.
Changes the download aciton to show_download, which kicks off preparing the file for DL.
Link on the show page now fires off the show_download action.
Adds a view for the show download action.
Finishes up compilations.  They now zip properly and can be downloaded as a zipfile.