* And work around Microsoft's moronic decision to PREVENT regular apps
from being able to determine the ACTUAL Windows version (Without the
extra manifest section, Windows 10 Preview 2 is detected as Windows 8.0)
* Using "highestAvailable" elevation allows standard users to run Rufus
without being prompted for elevations, which prevents them from both
detecting and formatting USB drives
* Since non administrator access is useless, switch to "requireAdministrator"
* Closes#153
* Also fix small issues with saving log and syslinux detection report