User:McCabe/Win build

Windows build notes.

When upgrading GStreamer from 0.10.21 to 0.10.22:

1>llmediaimplgstreamer_syms.cpp 1>C:\imprudence\linden\libraries\include\gst/gstutils.h(825) : error C2220: warning treated as error - no 'object' file generated 1>C:\imprudence\linden\libraries\include\gst/gstutils.h(825) : warning C4244: '=' : conversion from 'guint64' to 'guint8', possible loss of data

This is from http://bugzilla.gnome.org/show_bug.cgi?id=545714 and is safe to ignore. Added appropriate bits to Imprudence.