Fixes #4943
fix namespace and add test for getCountForStatement
added tests for getCountForStatement, getCountForSql, getRowCountClosure
Merge #5853
Merge branch 'fix/db_rowcounter' of git://github.com/samsonasik/zf2 into feature/5853-adapter-row-counter-partial-fix

* 'fix/db_rowcounter' of git://github.com/samsonasik/zf2:
  added tests for getCountForStatement, getCountForSql, getRowCountClosure
  fix namespace and add test for getCountForStatement
  Fixes #4943
Zend\Db\Adapter\Pdo added unit tests to row counter fix
Closes #5853, #4943
Merge branch 'feature/5853-adapter-row-counter-partial-fix' into develop

* feature/5853-adapter-row-counter-partial-fix:
  Zend\Db\Adapter\Pdo added unit tests to row counter fix
  added tests for getCountForStatement, getCountForSql, getRowCountClosure
  fix namespace and add test for getCountForStatement
  Fixes #4943
Fix @cover at travis build from #5853
Merge pull request #5930