Adjust type of loop variable in INT21_Ioctl_Char().

user32: Fix variable type in SCROLL_HandleScrollEvent().  Remove useless check in SCROLL_SetScrollInfo().

kernel32: Change the shared manifest test to depend on a build number that isn't currently published on at least XP, showing that assemblies with higher build numbers can be used.

ntdll: Shared manifests should have a less-strict version check performed when loading them as dependencies.

We don't need to create more than one because application dependencies 
can be resolved using shared assemblies with higher build and revision 
numbers.