Bugfixes and smaller improvements - Version 80rev94

Improved: Portal can now also transport squads when the start and target provinces are not connected via the navigation mesh.

Improved: Big mana trees now generate double the amount of mana as standard mana trees.

Improved: Several smaller performance optimisations which should improve framerates in the late game, especially with >300 workers.

Balancing: Beacon of Courage aura moral buff has been reduced as it was far too high.

Balancing: All squads' portal costs have been reduced to very low mana values.

Balancing: Increased the conquer bonus for Fire and Water Elementals.

Fixed a bug in temple aura, where additional auras from the building data list would not be applied correctly. This led to mana trees not working again.

Fixed a bug with forest fires not getting completely removed even though all trees or buildings were either extinguished or burned down.

Fixed a bug for the AI when placing buildings. In rare cases, it would place a building in a position where the grid was actually blocked.

Fixed a bug where squads would get stuck when trying to teleport via a portal.

Fixed a crash bug when squads would try to use a portal and the portal got destroyed during that time.

Fixed a bug where food limits were not timely restored after loading a saved game, which then led to a food reduction to 150 or less.

Fixed a bug where upkeep costs would get directly paid after loading a saved game instead of waiting for the cycle to end.

Fixed a bug where units using a portal would be lerped the whole way instead of actually teleported.

Fixed several issues in the send squads UI when the start and target provinces have a portal available.