Ref #127

Server log filtering

4 space indent + code flow rewrite for easier readability.

removed extra un-needed empty line.

changed the single qstring log filtering to qstringlist to allow multiple filtering capabilities

updated settings name (loglevel) to a more descriptive name (writelog)
added logfilters setting to allow user defined filters.

rewrote filtering code to allow for user input
code only filters on single string at the moment (still needs updated).

It's always windows.

Recompiled usermanual.

This can't be causing the failure can it? It can't find QtMultimedia..

Dunno how I missed that.

Fix #128

Use cpack to create osx's dmg

Ref #122

Putting user stuff in program files is bad

This should prevent deleting old deck files

removed un-used variables
changed switch case to increase verbose level as loglevel increases
captured unset loglevel to default to highest verbose log level