Add artifact_type_id column and indexes to blackboard_attributes table
Add artifact type id column to attributes table, part 1
First draft of adding artifact_type_id column to blackboard_attributes table
Added artifact_type_id column and value column indexes to blackboard_attributes table
Updated copyright notices for BlackboardAttribute.java and SleuthkitCase.java
Fix comments mangled by refactor rename in SleuthkitCase.java
Fix additional comments mangled by refactor rename in SleuthkitCase.java
Fix erroneous change to index name for blackboard_attributes table in case db
Fix some code indents in SleuthkitCase.java
Merge pull request #346 from rcordovano/artifact_type_in_attr_table

Artifact type in attr table