-Add configuration in Clutter projects to add option to build Clutter with
the GDK3 backend in addition to the Win32 backend
-Add another preconfigured clutter-config.h.win32_GDK which contains
backend configs for both GDK3 and Win32 windowing and input.
-"Install" the newly-introduced headers
-Fix the situation when the Clutter sources are not unpacked in the root
folder of a drive (ex: Clutter is unpacked in c:\blah or d:\blah, instead
of c:\ or d:\)
Use a pregenerated .bat file to generate the clutter-enum-types.[ch], which
will greatly simplify the maintenanace of the VS build files as public
headers are added or removed.
In response to the following moved to deprecated in the following commits:
a39be454
main: Move deprecated symbols to a separate header
40d703a0
backend: Move deprecated symbols to a separate header
b19c9196
actor: Move deprecated symbols into separate headers
142cd0bf
Move clutter-keysyms-compat.h to the deprecated section
530b07f1
Don't use a -deprecated suffix for headers
11420a70
group: Move deprecated macro into its own header
98b467f9
stage: Move the deprecated macros to a separate header