bugfix

1.10 update

Hotfix :
- Adjusted defence in units/MOs to take into consideration techs adding defence
- Increased combat width from terrains

Hotfix : Make numerical advantage matters more

Hotfix :
- naval unit combat stats changes
- nerf to heavy weapons MO
- temporarily disabled landing craft tech effect
- fortification techs now gives flat defense instead of multiplicative modifier
- fixed syntax causing some modifier to last way too long

hotfix :
- further increase the naval base limit from earlier techs

hotfix : disabled all ship upgrades

hotfix : strongly increased naval base cap from techs

hotfix :
- wooden ships needs fruits to represent citrus fruits used against scorbut