-Move setting to 'preview' XML section because it exists from another setting now
-Remove obsolete documentation
-Clear status on TerminalView clear ("Process terminated" etc.)
-Remove useless _ from regex (it is checked by \w)
-Extend INIParser unit test with *::EXCLUDE example key
-Cosmetics
(Might want to clear settings with ./inishell -ce)

font size properly... so now they are built more cleanly and do that.

This mechanisms of keeping things left-aligned is a little tedious, but
it looks like this should be done throughout INIshell's panels at some
point... would get rid of the spacer and some (hypothetical) problems.

Add 'new tab' preview menu, listen to the print command (to show preview) in the preview itself, the Logger and the About window. Show the logger on STRG+L from the preview and about windows.

This had been done for the main window, but the About, Preview and Logger windows still had the problem. The About window is slightly wider (100 pixels more) and the text has been edited to be a little more compact (as well as showing the project's links closer to the top).

Much more user friendly INI warning log messages. Also, now if and only if warnings/errors occur when parsing an INI then an 'opening ini_file...' is logged once. Better startup log info. Scroll to end of log when logging a new message.

The color scheme has been redesigned and now follows Solarized (https://en.wikipedia.org/wiki/Solarized_(color_scheme)). Instead of directly coding colors in the code, they have all received symbolic names and then the names are mapped to a specific color. On the long term, we will be able to offer several color schemes, like Solarized, osX, Windows, etc

Add German language. New languages will be easy to support on loadup,
but not at runtime (all widgets would have to be stored and asked
to redraw the text.)

Initial commit with a layout managed sketch for the main window, a logging window, message- and error-display, some sizing settings, and a first iteration of the qmake file.