Increment version to 1.7.0.
Increment version to 1.7.0.

pombredanne/wrapt,github4ry/wrapt,GrahamDumpleton/wrapt,pombredanne/wrapt,github4ry/wrapt,wujuguang/wrapt,GrahamDumpleton/wrapt,ionelmc/python-lazy-object-proxy,ionelmc/python-lazy-object-proxy,akash1808/wrapt,wujuguang/wrapt,pombredanne/python-lazy-object-proxy,akash1808/wrapt,linglaiyao1314/wrapt,linglaiyao1314/wrapt,pombredanne/python-lazy-object-proxy