[#186] Add Serial Consistency Level and Timestamp to Activity Log

[tolbertam]

For #186.

Updates recorded queries in the ActivityLog to include Serial Consistency Level and Timestamp if present in queries. If the values are not present, all the client implementations return null to indicate that they weren't set.

Also fixes some bugs in the codec module:

• Use of Notations.consistency in favor of Consistency.codec caused NullPointerExceptions due to order of loading. Use Consistency.codec instead in both Query and Batch.
• Bitmasking in BatchFlags was offset incorrectly.

Lastly, fixes the version in gradle.properties as it looks like there was never a 1.1.2 release, so labeled as 1.1.2-SNAPSHOT.

If all looks good, would like to deploy as version 1.1.2 if that is ok.

[tolbertam]

Have been using this and it's working great. Merging and releasing as 1.1.2