Rename the Visual Studio >= 10 generators to indicate the version year:
Visual Studio 10 => Visual Studio 10 2010
Visual Studio 11 => Visual Studio 11 2012
Visual Studio 12 => Visual Stduio 12 2013
Report the names with the year to the list of available generators so
that the cmake-gui drop-down shows the years. When selecting a
generator from the "-G" option or from an existing CMAKE_GENERATOR cache
entry, recognize names without the years for compatibility and map them
to the names with years.
Update the generator names in the cmake-generators.7 manual.
Since we do not need the information about the target architecture
we can use the PlatformName only to specify the this information.
This also removes setting of the MSVC_*_ARCHITECTURE_ID variable
which is not required, because this variable gets set by the
compiler detection code in CMAKE_DETERMINE_COMPILER_ID_CHECK().
Solution folders are supported as read-only in the VS11 Express
Edition, so do not prohibit their use just because we detect the
express edition (as we did in the VS10 generator).
Inspired-by: Paris
Since the parent commit the local generator Version ivar may be
compared for ordering. Convert comparisons:
"==VS10" becomes ">=VS10"
"!=VS10" becomes "< VS10"
to support an explicit enumeration value for VS11 with no change
in behavior.