[sword-devel] RTTI removed

[Troy A. Griffitts]

Due to absence of RTTI support in wince, I've removed dynamic_cast calls
in the API and replaced them with a homemade version that suites our
needs.

It's impl is very Java-like (Paul!) and it's call is wrapped with a C++
equivalent SWDYNAMIC_CAST(type, object) macro.
Seems to work for me on linux.  Should be no trouble in BC++.  Anyone
trying embedded VC++ please see if this helps your link problems.

	-Troy.