Added the class type field for Filters.
Added OriginalFileName field to LanguageFile.
Changed the liquibase changesets to follow recommendations about actions that should be performed in a changeset, so that failures cause less issues.
Changed filter type to use a tinyint
Removed references to the rendered HTML of Topics, since it's functionality has been removed.
Changelog fixes to prevent data corruption on failures or timeouts.
Removed the html changes from the changelog and initial mysql dump.