Milestone 3 Alpha 2

Changelog:

• Added animations rendering for ? blocks, brick blocks, dash coins and conveyors
• Fixed last level loading
• Fixed Newer/NewerSumSun sprite images
• Reggie now warns the user if the LH-compressed file couldn't be decompressed
• Added the Quick Paint Tool
• Added a Recent Files menu
• Fixed Pipe Enemy Generator sprite image
• Minor bug fixes