By making the QtOutputFormatter smarter. If we have nothing to format as
a link we do the minimal amount of insertText calls now.

Task-Nr: QTCREATORBUG-2367

 * Make information raised by Qt assert clickable.

Task-number: QTCREATORBUG-2175
Reviewed-by: Olivier Goffart

Works on Windows now. Done with and reviewed by dt, so blame him
if it is now broken on Unix.

Done-with: dt

Reviewed-By: Erik Verbruggen

Fixes a regression introduced in 7862e312.

Reviewed-by: dt

Move link handling code to outputwindow from OutputFormatter

Move createOutputFormatter to the RunConfiguration

That makes it easier for Qt4RunConfiguration et all.
This also fixes that each time a runcontrol was rerun a new
OutputFormatter was created without deleting the old one, thus
increasing the memory usage.

Task-number: QTCREATORBUG-1790
Reviewed-by: dt
Reviewed-by: mae

So now the "Applciation Output" can distinguish between these four, and
handle them appropriately.

By introducing the OutputFormatter, RunControls can influence the formatting
depening on the application started. A nice (and intended) side-effect is that
the QML runtime specific formatting will not interfere anymore with anything
else.