made erlang binding work with system *installed* dyncall: - made build use static libraries (used .o files directly) - removed custom flags for include path and relying on CFLAGS now - change cc to $(CC) - readme update with build instructions, etc.

* PowerPC/Mac OS X 10.4: Building Universal Binaries are broken.. in particular 
  the as for i386 assembler. 
  Workaround for PowerPC users: install with "--no-multiarch" or use prebuilt 
  binaries built on OS X >= 10.5.