Default to checking out master if no tag provided.
Default to checking out master if no tag provided.

okeefm/cypress,projectcypress/cypress,rdingwell/cypress,projectcypress/cypress,projectcypress/cypress,Xodarap/cypress,projectcypress/cypress,okeefm/cypress,Xodarap/cypress,jaebird123/cypress,jaebird123/cypress,Xodarap/cypress,Xodarap/cypress,okeefm/cypress,rdingwell/cypress,mariaro/cypress,jaebird123/cypress,jaebird123/cypress,mariaro/cypress,rdingwell/cypress,mariaro/cypress,rdingwell/cypress,okeefm/cypress,mariaro/cypress