bump version

fix triggering OnAdd on existing key. colyseus/schema#197

Unity code stripping: add [Preserve] tag to avoid stripping 'Reflecti…

…onType'

ArraySchema: prevent ArgumentOutOfRangeException at DeleteByIndex(). c…

…loses #238

Modify MyRoom.ts to delete player on leave and to set state according…

… to the online example, add dictionary key check to Callbacks.cs to prevent a KeyNotFound exception, update PlayerMovement.cs to use v.16. Sprite was missing on player, so I just assigned an existing sprite to it. modified .gitignore to exclude IntelliJ artifacts. (#241)

Co-authored-by: Joseph C Meineke <jmeineke@aep.com>

SchemaSerializer: handshake - prevent assigning the same Type for mor…

…e than one typeid

instance sharing: prevent early garbage collection

@colyseus/schema: improve instance sharing and ref count tracking.

NoneSerializer<NoState>: fix matchmaking into rooms without state. bu…

…mp version

fixes triggering OnChange. bump version