v2.1.0

2.1.0-alpha "Sydney (Post-NYE Release 2021)" : 04-Jan-2021

FIXES:

• Improved error handling in database.c:
  • Removed a memory leak and unclosed file handles in case of errors
• Improved error handling in db_sqlite3.c:
  • Explicitly use zero body length if length of body is zero
    (should not be possible but this makes the code safer).

ADDED_FEATURES:

• Finally, passwords are saved using a hash function (SHA2, 256 bits).
  The hashed string is a concatenation of a configurable system-wide
  salt, the username and the password. This is not a perfect solution
  since it would be better to have unique salts per user (currently
  the "unique salt" is just the username), but it is at least a start.

MISC:

• Improved documentation, thanks to @deavmi
• Default max size for postings is now 20 MBytes in config file.
• Tiny improvements of coding style