Minor bug fixes and improved env_player.reset

This release adds:

• handling of -swapsideconditions messages
• log.info /log pm messages instead of log.warning them
• Fix hidden power Moves initialization - their type is now correctly inferred
• Fix hanging env_player.reset when called before the current battle is finished
• env_player.complete_current_battle now forfeits instead of performing random moves until the battle finishes
• env_player.step(-1) forfeits the battle

Add stackable conditions + minor fixes

0.4.18

Up to version 0.4.18

Fix RAM usage bug and parsing improvements

• Coroutines are no longer stored in PlayerNetworkInterface - this should eliminate a bug where keeping Player objects around for a great number of battles lead to a monotonic increase in RAM usage
• Set Pokemon object ability property when there's only one possibility
• Better ability parsing
• Better items parsing

Better parsing and data update

• Better item and ability parsing
• Create ForfeitBattleObject
• Misc bug fixes
• Gen 1/2/3 data storage
• Update data

Add basic support for gen 1, 2 and 3

This release lets users set gen 1, 2 and 3 formats. poke-env will fallback to gen 4 objects and log a warning, as opposed to raising an obscure exception, as in previous versions.

Misc: removed ailogger dependency

Add compatibility with new PS challenge system

This release makes poke-env compatible with the new pm-based pokemon-showdown challenge system.

Misc bug fixes

• Fix a bug causing toxic counter to increment incorrectly when a Pokemon was switched out
• Fix a bug causing multiple terrains to be present in Battle.fields simultaneously

Add generation specific data files

Previous version of poke-env used the same data files for every generation. This led to incorrect data being used for older formats.
This release adds gen specific move and pokedex files, for gens 4 to 8.
It also add a handler for message and -message battle messages.

Add dynamax moves and `_UNKNOWN` enums

• Add dynamax moves
• Add multiple effects
• Better handling of illusion and zoroark / zoroa / ditto
• Multiple misc bug fixes

Add compatibility with unknown enum values

• Add _UNKNOWN enum values for several poke-env Enum classes
• Add custom PS_ERROR log level (level 25)