updated dependencies in README to python3, pytables3, etc.
updated dependencies in README to python3, pytables3, etc.

bmvdgeijn/WASP,gmcvicker/WASP,gmcvicker/WASP,bmvdgeijn/WASP,gmcvicker/WASP,bmvdgeijn/WASP,gmcvicker/WASP,bmvdgeijn/WASP