Longhaus v1.1.5 update

v1.1.5 - 16/10/2020

Balance
- The enemies now more adaptively respond to player's ability, and are a bit harder on later levels.
- Changed Slaughter III objective requirement.
- The Shockwave Tower has a new super upgrade, dealing damage to close enemies

Miscellaneous
- There is a new tutorial.
- There is new music in the game, and the player can now skip back and forth through songs with the comma and period keys.
- Some ambient environment events now randomly take place.
- The next wave button now has a cooldown, instead of needing all enemies to be killed.
- Soldiers AI improvements.
- Catapult model change.
- The game will now pause if it loses focus.

Bugfixing
- Fixed multiple bugs related to villager allocation.
- Fixed multiple bugs related to soldier AI.
- Fixed multiple bugs related to resource structures.
- Fixed multiple bugs to do with defensive tower alerts.