For new players: Three new introduction encounters

Hi,

Dear new players. I might be working on the roadmap for SPL for the next few months, but firstly I need to make the game more approachable for you.

• Created a new tier of enemy - crippled. They can't move, or use jump drive.
  
• Added three new introduction encounters where the new players can get used to the enemy types and do some target practice. Also it might be a good intermediate step between the tutorials and the real fight.
  
• Each intro encounter starts with 6 crippled enemies, once these are cleared a fully active bronze enemy appears, as a tutorial 'mini boss' - the real deal to fight.
  
• Each intro has some brief description about effective strats to use against the specific enemies, their strengths and weakness.
  

• Wall of text popups now appear on the left side of the screen instead of center, should feel much less intrusive.
  

Thanks and enjoy!