Some methods and signals belonging to mce D-Bus interface are
not declared in mce-dev package. And what is declared is not
grouped in a manner that would make the context of constants
clear.
Add missing method/signal/argument constants.
Group constants by context.
Add references from methods/signals to relevant argument
constants.
Do not refer to glib types when explaining a D-Bus interfaces.
Where needed update the explanatory comments.
Signed-off-by: Simo Piiroinen <simo.piiroinen@jollamobile.com>
c1f3964d19