Profiling of iterator open/reset/close
Refactoring/fixed extra next call
Addressed review comments
Fixed typo
Merge pull request #79 from 28msec/feature-profile-open-close-reset-review-comments

Addressed review comments
Addressed review comment
Merge pull request #76 from 28msec/feature-profile-open-close-reset

Profiling of iterator open/reset/close