* Added missionairy units, which can spread religion and bought with faith
* Forgot an include, minor additions
* Forgot credit for the missionary image
* Large refactor, enabling buying with almost all stats, split IConstruction into IConstruction & INonPerpetualConstruction
* Does this fix the tests
* Fixed accidentally removing all trailing spaces in template.properties
* Thanks to someTroglodyte for paying more attention than I do :)
* Implemented requested changes
* Fixed large amount of question marks
* Missing space, of course
* Fixed function name change
* Fixed merge problems
Co-authored-by: Yair Morgenstern <yairm210@hotmail.com>
* Added Era.json and imported the data to the ruleset
* Units at start are now also determined by eras.json
* Research agreement costs now determined by json file
* Gold and Culture provided at the start are now awarded
* Can no longer build wonders that are more than two eras older than the starting era
* Default population and buildings for settlers can now be added
* Added checks for validity of eras.json file in mods
* Colors for the icons of technologies are no also saved in eras.json
* Removed constants for all era's as they have been generalized away by this PR
* Removed spurios println's
* Added compatibility for mods
* Updated the military unit you get from ruines to be the military unit you received at the start of the game
