- create-tables commented
- moved more toplevel functions into static classes
- removed hard coded time zone array
- session cookie now persists for 2 weeks
- better comments, line wrapping
- trace logging moved to dedicated trace function
- URLs with no trailing slash better handled
- validate improvements
- proper HTTP error codes for bad request methods or missing POST actions

- User creation added
- Sign in added
- Posting added
- Install sanity checks
- Exposed database check added
- Duplicate post check
- Localized times