Option Checkbox for writing BOM

Hello!

First of all: focuswriter is awesome! As I used it the first time, I made a habit of using it for authoring my texts. The simplicity of the GUI is really a relief for my eyes!

THANK YOU!

However lately I tried to use a text file written by focuswriter for as input for processing in another application. But that one failed to handle the BOM marker you ask the QTextStream to write if the file type is txt.

So I added an option in the preferences that the user can activate if he wants the BOM set or not.

Maybe you like this feature and it's worth pulling.

regards
Simon