Update NSIS scripts to use unicode version of installer.
Write BOM in NSIS translations' files.
Made changes for clean up and fix the problem that a new ramdon port is set every time a setting is saved.
more clean up for feature selecting a random port when starts up
new fix for selecting random port when system starts up
Seed rand only at one place.
Port spinbox is now disabled correctly.
Change description of random port checkbox.
Update changelog.