CRLF
Add pwhash recommended minimum parameters (interactive & sensitive)
Add Coverity Scan status
poly1305_finish(): zero the whole state using sodium_memzero()
Merge branch 'master' into doc

* master:
  poly1305_finish(): zero the whole state using sodium_memzero()
  Add Coverity Scan status
  Add pwhash recommended minimum parameters (interactive & sensitive)