bitbake: toaster: implement get-dburl command

Implemented management command to call getDATABASE_URL API.
It will be used to get database url from toaster shell script
by running 'manage.py get-dburl'

(Bitbake rev: fabe9c8f14fd7b8ab204a2b610c64ac5b62135ac)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: brian avery <avery.brian@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/toaster/toastermain/management/commands/get-dburl.py

@@ -0,0 +1,9 @@
+from toastermain.settings import getDATABASE_URL
+from django.core.management.base import NoArgsCommand
+
+class Command(NoArgsCommand):
+    args    = ""
+    help    = "get database url"
+
+    def handle_noargs(self,**options):
+        print getDATABASE_URL()