gst/gstinfo.h: Add missing inline function.

gst/gstinfo.h: Add missing inline function.

Original commit message from CVS:
* gst/gstinfo.h: Add missing inline function.
* gst/gsttrace.c: add include
* gst/parse/grammar.y: remove unused code
* gst/registries/gstxmlregistry.c: (make_dir): make mkdir call
more portable.
* tools/gst-register.c: wrap unistd.h
More additions/fixes from Steve for the MSVC build.
* win32/GStreamer.vcproj:
* win32/Makefile:
* win32/Makefile.inspect:
* win32/Makefile.launch:
* win32/Makefile.register:
* win32/README.txt:
* win32/gst-inspect.vcproj:
* win32/gst-launch.vcproj:
* win32/gst-register.vcproj:
* win32/gstbytestream.def:
* win32/gstbytestream.vcproj:
* win32/gstconfig.h:
* win32/gstelements.def:
* win32/gstelements.vcproj:
* win32/gstenumtypes.c:
* win32/gstenumtypes.h:
* win32/gstoptimalscheduler.def:
* win32/gstoptimalscheduler.vcproj:
* win32/gstreamer.def:
* win32/gstspider.def:
* win32/gstspider.vcproj:
* win32/gstversion.h:
* win32/msvc71.sln: