Added showdebug command. Also: * Added an exported constructor to RChildProcess so the iProcess handle was set to zero on construction. * Fixed bug in fshell_builddocs script that created HTML relative links with backslashes instead of forward slashes.

EXPORTS
	_ZN12RExtraBtrace15EnableProfilingEi @ 1 NONAME
	_ZN12RExtraBtrace5CloseEv @ 2 NONAME
	_ZN12RExtraBtrace7ConnectEv @ 3 NONAME
	_ZN12RExtraBtraceC1Ev @ 4 NONAME
	_ZN12RExtraBtraceC2Ev @ 5 NONAME
	_ZNK12RExtraBtrace6HandleEv @ 6 NONAME