DataStreamPeer: add missing include <QDataStream>
signalproxy.h: add missing forward declaration of QIODevice
Checking for single char line endings

This fixes problems with IRC servers sending only single char line
endings. Before the last char on each line for thos servers would be
chopped, now Quassel checks how the line ends and chops accordingly.
Fixes #1267
Fix contextmenu actions for Qt5

As documented for QObject::connectNotify
Merge pull request #72 from jpnurmi/datastream

DataStreamPeer: add missing include <QDataStream>
Merge pull request #73 from jpnurmi/signalproxy

signalproxy.h: add missing forward declaration of QIODevice
Merge pull request #78 from seezer/qt5contextmenu

Fix contextmenu actions for Qt5
Don't treat pure format strings as translatable.
Fix Bug #1293: --syslog option writes to emergency level
Fix Bug #1293: --syslog option writes to emergency level
Merge pull request #81 from otih/master

Fix Bug #1293: --syslog option writes to emergency level
Use correct nick on 001 RPL_WELCOME

Fixes #1020
When the user connects to  a bouncer, the bouncer will send back the
welcome message received when it first connected to the network.
This caused Quassel to display a wrong nick if it had changed
since the first connection.
Add a "print" command to only display an info message, without sending anything to server