Destroying alien spawners or worms will reduce alien evolution.

Creates two new difficulty levels between peaceful and normal difficulty.
to choose between the two difficulty levels, edit config.lua line 10, ALIENS_GEARING_FOR_WAR = true/false
set to:
false - for easy difficulty, but more action than peaceful
true - for easier than normal difficulty, but ramps up during the course of play

Change Log
1.1.0 - Updated to 1.1 by De7ilx.
1.0.0 - Updated to 1.0 by De7ilx & Kobol added the mod settings menu (Notes: https://mods.factorio.com/mod/Evolution%20Reduction/discussion/5f48131bfc56aff0abe9989d).
0.18.0 - Updated to 0.18 by De7ilx.
0.17.2 - Added the Vanilla value back. It was reduced 60 times since 0.17 in vanilla.
0.17.1 - Removed 133% evolution gain factor since it became broken and evolution were generated way too fast. Now it is just Vanilla.
0.17.0 - Updated to 0.17 by De7ilx.
0.16.1 - Supports Rampant now! Removed some of the logic behind different enemy sizes vs different reduction. Now it reduces the same amount no matter how big or small the enemy is. Still, it is harder to reduce evolution the higher the evolution is. Should work with any mod that changes the enemies. Hopefully.
0.16.0 - Updated to 0.16 by De7ilx.
0.15.0 - Updated to 0.15 by De7ilx, Instructions for update taken from (https://mods.factorio.com/mods/ToadRoach/EvolutionReduction/discussion/15142 "here")
0.14.5 - Changed search code to use list instead of nested ifelse to improve customability
0.14.4 - Tweaks
0.14.3 - Added second slightly harder difficulty level ALIENS_GEARING_FOR_WAR
0.14.2 - The version that actually has the stuff for Bob's Enemies MOD. Sorry for this silly mistake.
0.14.1 - added compatibility and config option for Bob's Enemies MOD
0.14.0 - basic update to work with Factorio 0.14
0.0.2 - complete rewrite, added worms to the reduction effect and added config.lua to make customization easier, removed potential for bugging out as evolution factor can now no longer go below zero.