Makefile fixes.
Fixed export_templates.mk and reenabled it
Updated fshell version generation to better work with multiple platforms including winscw
Updated other extension makefiles to better work with sbs --what
EXPORTS
_ZN12RExtraBtrace15EnableProfilingEi @ 1 NONAME
_ZN12RExtraBtrace5CloseEv @ 2 NONAME
_ZN12RExtraBtrace7ConnectEv @ 3 NONAME
_ZN12RExtraBtraceC1Ev @ 4 NONAME
_ZN12RExtraBtraceC2Ev @ 5 NONAME
_ZNK12RExtraBtrace6HandleEv @ 6 NONAME