Try to fix compilation on OSX.
Include a patched version of sha3.h that includes missing BLOCKSIZE constants.
Don't reference MakeMakefile unless it is defined.
Remove dead comment.
Handle FreeBSD 64-bit flags.
Remove unnecessary check for libstdc++.
Use find_library instead of have_library.
Add some include directories to search for Crypto++ headers.
Bump copyright year.
Change COPYING to MIT-LICENSE.
Bump to version 0.0.5.