0.1 -> 0.2
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fn_update_audit_log_trigger_on_table()
Config tables tb_audit_field and tb_audit_data_type

0.2 -> 0.3
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Lots of fixes for pg_dump/pg_restore and schema qualification
Added sequences sq_pk_audit_field and sq_pk_audit_data_type as config data

0.3 -> 0.4
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Changed extension name to "cyanaudit" and fixed branding throughout.
Added check for PostgreSQL 9.1.7 
Added support for archiving and restoring audit data to/from files.
Better error checking throughout and during installation.
Moved log rotation function to an external Perl script to avoid race condition
Fixed bug with audit_event sequence going out of range
Added DDL trigger for Postgres 9.3 and above

0.4 -> 0.9.0
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Made Cyan Audit ready for PGXN
Changed to semantic version number