ADV Beta Version 10

Server/Client
- Add a minimal dice system
- Add server hooks
- Add an API Call for /write commands
- Don't specify seconds-per-tick when creating games
- Client: add default-game option
- Client: fix switching server logins

Mods
- Add JSON creator tool to jsonlib
- Improve index.json format
- Implement ecoregions on awg
- Add and improve logs inside the database
- Implement many mechanisms inside the database: actions,
  flags, api_calls, objects activation, attributes
  and modifiers
- Implement forced triggers
- Implement spawns, populations and resources
- Substantially improve game initialization sequence
- Substantially improve game messages
- Import dictionaries inside the database
- Implement labels
- Remove obsolete climate mod
- Many fixes and lot of code cleaning