Benefits:
- We had config files in different paths, now they will be centralized.
- Daemon, LanLinkProvider and NetworkPackage depend only on Qt now.
- KConfig is accessed with strings as keys, where a typo can go unnoticed.
- Daemon is now thinner, as it doesn't need to initialize config values.
- QCA::Initializer is in a single place now (was in Daemon and Plugin).
I had to keep the old kDebug code in kdebugnamespace because other parts
of the code are using it. Will be removed as soon as all code using it
is ported as well.
Straight forward port from QJson to the native Json support.
As a note I have added 2 helper functions that make the code bit more
readable (object2qvariant and qvariatn2qobject).
Only lets the plugins that support something offered on the other end or
that offer something supported on the other end. If we don't have
information about the other device, we enable everything like we used to.
Also refactors a bit the plugin loader, to be able to provide information
step by step.
Currently it works, but we need support for capabilities at least on
Android to start taking good advantage of it.
REVIEW: 118820
CCMAIL: kdeconnect@kde.org
