Several bug fixes

- Adjusted obstacle height to better fit mobile screens
- Adjusted some missions for better playability
- Fixed hidden chat button bug
- Limited maximum in-game gear velocity
- Improved game invite screen

- Added an 'Invite' button the game lobby
- Better log-in failure handling
- Can now switch weapon tier by tapping weapon
- Wind icon no longer blocks damage indicators
- Fixed 'Chat Message' bug in game lobby
- Several other fixes

- Double tap to zoom fixed and more precise
- Dragging over the game UI no longer moves map
- Pre-game movement fixed
- Chat display issues and on-screen-keyboard fixed
- Closing the Hub no longer starts a mission
- Game orientation now auto-rotates and does not sleep
- Fixed issue with invisible player slots
- Several other fixes

Several bug fixes and an updated engine version.