Fix #231 Adding a "tag" to queryCompletionListener and queryFailureListener
Split AutoSession classes, add invalid method call detection
Fix consider working with multiple threads (e.g. Future)
Fix duplicated line in build settings
Ignore failures only when running on Travis with MySQL
Merge pull request #322 from scalikejdbc/feature/issue231

Fix #321 Adding a "tag" to queryCompletionListener and queryFailureListener