win32: holding Shift when resizing FCEUX window reverts "Force integral factors" meaning
win32: remodel "Video config" dialog:
* removed the list of predefined modes (they were broken anyway)
* removed FS stretching options (obsoleted by "Best Fit")
* removed broken display of "Current Pixel Aspect Ratio" (may return it after implementing the 4:3 mode)
* "Full Screen (hotkey: Alt + Enter or double-click)" - reads current hotkey mapping
[[Split portion of a mixed commit.]]
* Best Fit also works for fullscreen mode
* "Hide mouse cursor" and "Use console BG color for empty areas" options
* "Switch fullscreen by double-click" option in GUI config
* Fixed "Reload ROM" hotkey in fullscreen
* updated docs
[[Split portion of a mixed commit.]]
* uploaded new online documentation (old fceux-2.0.2 doc is still there)
* converted old HelpNDoc project file to HelpNDoc3 format
[[Split portion of a mixed commit.]]