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
_ZN17RLoggingAllocator7InstallEv @ 1 NONAME
_ZN17RLoggingAllocator9UninstallEv @ 2 NONAME
_ZN17RLoggingAllocator15StaticTraceFreeEP10RAllocatorPv @ 3 NONAME
_ZN17RLoggingAllocator16StaticTraceAllocEP10RAllocatorPvi @ 4 NONAME
_ZN17RLoggingAllocator7InstallEj @ 5 NONAME
_ZN17RLoggingAllocator3NewEjP10RAllocatorRPS_ @ 6 NONAME