multiple patches + some cleanup around touched patches

[mechoriet]

• port asm code generation for event listeners instead of reflection(should improve performance)

• port Performance & Concurrency Improvements to Permissions no double lookup

• packet limiter fix compile warning

• avoid double io lookup if file exists

• don't allow pickup delay to go below 0

• Check channel before reading and change isOpen calls to
  IsActive

remove some more places where blockpositions are used often and can just be 3 int's x,y,z

[mechoriet]

this is the same state as before only removed the patch if no listener skip but some plugins do funky stuff

[Coccocoahelper]

Bump