Changes in what a 3.2 ruleset can do

[cazfi]

Lua API has now method to get tile targeted effect value. effects.tile_bonus() osdn #47547

[cazfi]

Separate maximum number of resources limit has been lifted. The only limit there's to amount of resources is the maximum number of extras, i.e., ruleset can use all the extra slots for resources, if author so wants. osdn #48607

[cazfi]

Added support for extras that impose ZoC by themselves, even when no units are present osdn #47701

Giving also this flag to an extra that hides units is one way to resolve the question about units inside such extras not imposing ZoC.

[cazfi]

Attack and Suicide Attack actions have been Fake Generalized. osdn #42688

[cazfi]

Added Teleport Conquer action type. osdn #48665

[cazfi]

Bombard Lethal action Fake Generalized, i.e., there's now two copies of it with their own max ranges etc. osdn #48748

[cazfi]

New requirement type PlayerFlag. osdn #45666

[cazfi]

Made Collect Ransom an action enablers controlled action. osdn #42028

[cazfi]

New PlayerState requirement type, initially with just one possible value: Barbarian, to test if the player is a barbarian. osdn #41813

[cazfi]

New freeciv version query functions to Lua API osdn #48879

- Deprecated fc_version()
- Added name_version() that is identical to old fc_version(), but name tells that it returns more than the version
- Added comparable_version()
- Added version_string()