Update 0.9.0-6

[dcode]

We recently released a new server side update, 0.9.0-6:
- Fix for inactive towers on upgrade
- Fix players been kicked from the game on failed login tries

[dcode]

A client side update has been released and fixes:
- Unexpected exception thrown on external script execution (IE only)

[dcode]

Just another client side update:
- Fixed hearts counter in game info panel
- Added round counter to game info panel
- Fixed JNLP implementation to override existing vars