Updated version strings in MSVC and Xcode projects Version.template files and in NSIS installer script to 0.4.2

git-svn-id: https://freeorion.svn.sourceforge.net/svnroot/freeorion/trunk@5708 dbd5520b-6a0a-0410-a553-f54834df5b05
Merge remote-tracking branch 'svn-mirror/master'