Alpha v3.1.0415

Updates/Changes:
- General balancing, user notifications for eruptions
- Other city towers no longer have unlimited ammo

Bugs Fixed:
- Fixes for out of sync resource amounts in the UI
- Junk Cannon target logic fixes
- Junk Cannon explosion particle glitches
- Filter Station Arsenal upgrade not doing damage
- Loaded resource crates messing up navmesh areas
- Buildings having higher than normal production times
- Sunken beer, algae, pumice nodes natural decay sending notification to player
- Thrust calculation and rower fixes
- Motors providing thrust while paused, scrapped
+ Removed Martin