adapting to distorm 3.3 - instructions

[rpeleg1970]

Hello,

I fetched and updated to run with distorm 3.3. Will also make a fork/pull-request but here it is in a nutshell:

1. copy the .h files from distorm/src to frasm/src. Also copy distorm/include directory into frasm/
2. In frasm.c fix:
   • 'pos' in _wstring was renamed to 'length'
   • 'internal_decode' was renamed to 'distorm_decode'
   • change 'RSTRING(buf)→len' to 'RSTRING_LEN(buf)' (ruby.h changes)
   • change 'RSTRING(buf)→ptr' to 'RSTRING_PTR(buf)' (ruby.h changes)

Building is as described in the README file, make sure you run 'make install'
This was tested on a 10.7.5 Mac