Handle  the 2nd parameter correctly as a event id
to be used for a handshake. Introduce a special mode
when attaching to crashed processes.
Code cleanup, pass StartParameters along to startDebugger.

Introduced struct DebuggerStartParameters to pass around
start parameters, removing the need for the engines to
access private members of DebuggerManager. Pass it
to DebuggerManager::startNewDebugger() and move
the GUI parts of that function into DebuggerPlugin,
making it possible to create the struct from command line
parameters. Introduce command line parsing with a few more
-enable-xx options. Introduce warning() to debugger panel
in the CDB engine.

On this occasion, clean out a few trailing whitespaces.

Modify engine creation funcs to populate a list of option pages
to be able to handle engine enabling independently of the
actual engine creation.

Reviewed-by: hjk <qtc-committer@nokia.com>

Task:     -
RevBy:    Thorbjorn
AutoTest: -

Details:  in all pluginspecs.