* scenario editing mode improvements and new uniques
* Fixed Russian nation unique - it is civ-wide bonus
* genericized "+[]% Production when building [] in this city"
* genericized "All newly-trained [] units in this city receive the [] promotion"
* changed some uniques to be able to have list of filters separated by comma as unique param
* scenario editing mode improvements:
Resource requirements when buying buildings and units are ignored
Limit for selling buildings is ignored
Workers improve tiles instantly
Units will not be disbanded if civilization has negative gold
* fix crash in scenario editing mode due to PerpetualConstruction not having a GoldCost
* undo comma separation
* implement All newly-trained [relevant] units in this city receive the [] promotion
relevant as in 'units that can receive'
* upadte template.properties
* unnecessary parentheses
* Not being annoyed by this vs less chance of forgetting to set gold before releasing scenario
* update template.properties
* add missing spaces
* Basic spectator functionality.
Added as a separate nation with full visibility.
* Robots not allowed to spectate :(
* Allow multiple human spectators
* Multiple spectators allowed.
Fix crash when max players in map editor.
* At least one active (not spectator) human player needed
* - Invisible tiles vision for spectators.
- Minimum 1 active player (Human or AI) to start the game.
- temporary only 1 spectator in game
* Revert "At least one active (not spectator) human player needed"
This reverts commit d843bebe
* Add all tech to spectators for resource view
* Spectators couldn't be rolled out from "Random" civ
* Spectator is not a MajorCiv.
corrected random pick
* Small refactor
* No diplomacy button for Specators
* Add fixes from yair210 review.
