bitbake: toaster: build control functionality

We add the build control functionality to toaster.

* The bldcontrol application gains bbcontroller classes
that know how to manage a localhost build environment.

* The toaster UI now detects it is running under build
environment controller, and update the build controller
database and will shut down the bitbake server once
the build is complete.

* The toaster script can now run in standalone mode,
launching the build controller and the web interface instead
of just monitoring the build, as in the interactive mode.

* A fixture with the default build controller entry for
localhost is provided.

[YOCTO #5490]
[YOCTO #5491]
[YOCTO #5492]
[YOCTO #5493]
[YOCTO #5494]
[YOCTO #5537]

(Bitbake rev: 10988bd77c8c7cefad3b88744bc5d8a7e3c1f4cf)

Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/bin/toaster

@@ -139,15 +139,16 @@ if [ -z "$ZSH_NAME" ] && [ `basename \"$0\"` = `basename \"$BASH_SOURCE\"` ]; th
         webserverKillAll
         RUNNING=0
     }
-    webserverStartAll || exit 1
+    webserverStartAll || (echo "Fail to start the web server, stopping" 1>&2 && exit 1)
     xdg-open http://0.0.0.0:8000/ >/dev/null 2>&1 &
     trap trap_ctrlc SIGINT
     echo "Running. Stop with Ctrl-C"
     while [ $RUNNING -gt 0 ]; do
-        wait;
+	python $BBBASEDIR/lib/toaster/manage.py runbuilds
+	sleep 1
     done
     echo "**** Exit"
-    exit 1
+    exit 0
 fi
 
 # We make sure we're running in the current shell and in a good environment