this avoids unnecessary QByteArray constructions

added *lots* of missing QLatin1*(). to avoid making the code too
unreadable i added the macros _(), __() and _c().
also added local8Bit conversions for everything which might contain
file names.

The goal is to support both the emacs usecase and the
usecase with fixed views for certain sets of files. The changes
gives the user more control where the files are. Effectively
it should be easy now to put your cpp files in the left pane,
and the header files in the right pane, and use F4 to toggle
between them.

Also make the 'x' in the toolbar close the document, and not the view.

This one has some magic inside to always use the current outputpane.
This solves the issue that I don't want Search and Build Issues list to
have its own set of next/prev shortcuts. todo is a better definition of
next for the build issues and/or a way to restrict it only to errors.

from smaller chunks using expression templates.

Simple test and benchmark included, the class is not yet complete.

one up.

For CDB debugger location marks.