This fixes a bug where receiving broadcast messages would stop working
in case 2 messages have been received at the same time.
The problem is that readReady will only emit once per batch of datagrams
received, in case we receive 2 datagrams but only consume 1, readReady
will never be emitted again.
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.
Trying to bind a UDP socket to 255.255.255.255 fails with EADDRNOTAVAIL
at least on FreeBSD.
The sender side on Android should send its message in broadcast mode (as
it already does), but the receiver side should bind to INADDR_ANY, not
INADDR_BROADCAST.
BUG: 324769
REVIEW: 118870
