[#4186] ticket:63 fix requirements (s/MySQLdb/MySQL-python/)
[#4186] ticket:63 fix requirements (s/MySQLdb/MySQL-python/)

apache/incubator-allura,lym/allura-git,apache/allura,lym/allura-git,apache/allura,apache/allura,heiths/allura,apache/allura,lym/allura-git,lym/allura-git,apache/incubator-allura,Bitergia/allura,heiths/allura,apache/incubator-allura,Bitergia/allura,Bitergia/allura,apache/allura,Bitergia/allura,lym/allura-git,apache/incubator-allura,Bitergia/allura,heiths/allura,heiths/allura,heiths/allura