Version 1.12.2-1.1.5:

You all asked for it: I added ~~dust~~ Spider-Man! :)
Made kinetic energy blast stronger
Changed Thor weapon flight mechanic: holding rightclick spins the hammer (and damages entities), jump to start flying
Added permission nodes for space stone abilities
Made sure that people can't destroy or place blocks in areas where they are not allowed to (probably useful for server owners)
Added JEI info texts to various items to give explanation on how to get them
Added data tags for suits: "solar_energy_multiplier" to increase the gained solar energy, "bow_fov" to increase the FOV when using the Compound Bow, "god_of_thunder_multiplier" to increase the gained XP for the God of Thunder power (all those are added to the fitting suits)
When the damage of the Captain America suit is below 50% it will change its texture
Added Kryptonite poison to Kryptonite blocks
Decreased the fall damage when you block with Cap's shield and look down
Added "combo move" for Thor and Cap: Hit someone who holds Cap's shield with a Thor weapon and you emit a big blast
Added that Cap's shield and Thor's weapons can destroy glass (and every block which has the glass material and a hardness below 0.5)
Added water breathing to Kryptonian superpower
Fixed that every damage source was able to charge up kinetic energy
Fixed Uru duplication with Ultimate Mjolnir using TinkersConstruct
Fixed grappling arrow limit & rendering
Fixed that Thor's weapons would attack trail & size change entities
Fixed heat vision third person rendering
Fixed problem where players rendered in the main menu crash the game
Fixed that the recipe Cap's shield wont show up in JEI

HeroesExpansion

Shooting Lightning with Thor's Hammer

Arrow Suits

Ghost Rider's Car

World Generation for Mjolnir

Normal and Ultimate Mjolnir

Thor's Suit and Hammer