Changes:

Changes:

    * Docker now builds with an empty route file so rmr starts; it will not even start properly without this
    * Change how fake_sdl is activated for docker convienence
    * Create dev guide file
    * Add instructions on how to test the rmr healthcheck in a running container
    * Update to xapp frame 0.7.0 (which has rmr healthchecks)

Issue-ID: RICAPP-92
Change-Id: Ib0cd06870ba1bfc51ee8749c040d0b4c65f8c4fa
Signed-off-by: Tommy Carpenter <tc677g@att.com>