Limit md5 import to allow for compatibility with fips environments#1288

lratc wants to merge 3 commits intoapache:trunkapache/cassandra-python-driver:trunkfrom

lratc:fips_compatibility_mark_non_security_md5lratc/cassandra-python-driver-fips:fips_compatibility_mark_non_security_md5Copy head branch name to clipboard