Create more usable logging reports

Initial logging reports are minimal, and need extending for usability:

1. civicrm_contact.is_deleted changes should be shown as contact deletion/revival rather than updates. [done in 3.3.2]
2. The display of changes to civicrm_contact should be more clever and properly interpret things like foreign key changes (rather than showing prefix_id changes, etc.). [done in 3.3.2]
3. Related tables (like custom data) should be tracked as well. [done in 3.3.2]
4. Filters should support reporting on changes by date range [done in 3.3.2]

In general, the report should look more like Constituent Report (Detail).