1.5e patch notes

Hi folks. This is a small update that fixes some nasty bugs and rebalances the tech tree. It also has some critical optimizations. No promises that I didn't break anything. Please let me know if I did!

• Updated the AI so that it will not attempt to build any ship designs that the player will made. It is drawing all of its designs from the big community made pack from years back
  
• Updated the tech tree with overall higher technology costs. I really want to stretch out the early-mid game instead of just rushing through things. It makes the early techs feel a bit more meaningful when you get to actually use them in combat
  
• Changed UI behavior so that clicking the X button in the notification panel will now clear all active notifications
  
• Disabled old ground combat missions while it gets reworked
  
• Implemented object pooling for spaceship explosions in the battle map and made other optimizations related to exploding ships. TONS FASTER IN BIG BATTLES
  
• Fixed issue where subspace projectors were amplifying the slowing effect of nearby terrain
  
• Fixed an issue where ships would open fire at extreme long range, and the projectile falls short by a meter. Ships will get just a little bit closer now.
  
• Fixed an issue where fleets on the strategy map would sometimes be too large or display more than one “hero” vessel as a representative
  
• Fixed a bug where the Osiran event would cause the game to hang
  
• Fixed a bug with saving and load that would sometimes cause game objects like troops and fleets to forget their home planet, which had odd lingering effects
  
• Fixed an issue where weapons would not reload fast enough when doing battle at 2x/4x speed