Simplify continuous-integration build

Extend dockerfile to call make package.
Move dockerfile to new ci subdirectory.
Remove the (now unneeded) container tag file.
Document the docker-based build process.

Signed-off-by: Lott, Christopher (cl778h) <cl778h@att.com>
Change-Id: I94f9cb9eaabd797b76011aa9c6229345a799d4f9
4 files changed