put back 'import logging', missed the fact that we use it under some error conditions that I missed
put back 'import logging', missed the fact that we use it under some error conditions that I missed

[git-p4: depot-paths = "//eai/aquilon/aqd/": change = 645542]

guillaume-philippon/aquilon,stdweird/aquilon,quattor/aquilon,guillaume-philippon/aquilon,quattor/aquilon,stdweird/aquilon,stdweird/aquilon,guillaume-philippon/aquilon,quattor/aquilon