Changelog for version 0.02-alpha (03/12/2014)

• Non-backward-compatible syntax change: Extractors only use the column name instead of \[relation_name\].\[column_name\] for keys to the JSON object. Documentation has been updated accordingly.
• Non-backward-compatible syntax change: You must explicitly alias id and variable columns in the inference rules. See the updated inference rule documentation for more information.
• Faster factor graph grounding code using pure SQL
• Support for high-speed C++ sampler
• Added documentation for high-speed sampler integration
• Faster serialization of factor graph
• Refactored the database-connection code to be JDBC-compatible. This makes it easier to add support for different databases.
• Automatically assign sequential variable IDs to extractions.