Remove all references to Developer Launcher and Minishift from the Spring Boot Runtime Guide.

• Remove each of the following sections from the guide:
  • 1.2. Application Development on Red Hat OpenShift using Developer Launcher
  • 3. Downloading and deploying applications using Developer Launcher
  • 7. Example applications for Eclipse Vert.x
  • H.2. Terms specific to Developer Launcher

• Search for any remaining references to "Launcher" and "Minishift" and remove these references also.