added loggers in daos. fixed some issues with dao tests.
Merge pull request #46 from Qorder/issueDaoLoggers

complited issue #31.
completed issue #38
Added image request uri to detailed product dto
Merge pull request #47 from Qorder/issue#38

Merge issue#38 to dev
Merge pull request #48 from Qorder/dev

Merge dev into master