Test CRAM-MD5 HMAC implementation
Use Zend\Crypt\Hmac in CRAM-MD5 authentication
Merge branch 'hotfix/4676'

Close #4676
Merge branch 'use-zend-crypt-hmac-in-crammd5' of https://github.com/gwis/zf2 into gwis-use-zend-crypt-hmac-in-crammd5
Merge branch 'gwis-use-zend-crypt-hmac-in-crammd5' into develop