Update FlxRandom demo with ArrayShuffle fix
minimize svgs in /images
remove unused assets, use PNG instead of JPG, minimize PNG files, minimize SVGs
begin flixel logo optimization
finish minimizing logo svgs, re-create and compress logo pngs
revert FlxRandom to upstream dev
restore hello-world
resize repo logos, see comment
resize demo images for consistency and size reduction
revert demo image resize
Merge pull request #37 from steverichey/dev

Image Optimization
Update README.md
Revert Steve’s removal of image being used and stretching of the openfl logo.
Merge branch 'dev'

* dev:
  Revert Steve’s removal of image being used and stretching of the openfl logo.
  Update README.md
  revert demo image resize
  resize demo images for consistency and size reduction
  resize repo logos, see comment
  restore hello-world
  revert FlxRandom to upstream dev
  finish minimizing logo svgs, re-create and compress logo pngs
  begin flixel logo optimization
  remove unused assets, use PNG instead of JPG, minimize PNG files, minimize SVGs
  minimize svgs in /images
  Update FlxRandom demo with ArrayShuffle fix