namDHC v2.0

• Migrated to AutoHotkey v2
• Fixes for GUI/threading/message handling, queue/cancel robustness and job execution stability
• Added 7zip support
• Added drag and drop support for input files. Drop folders or files on the main file list window to add
• Removed CHDMAN version checking
• Updated bundled CHDMAN to 0.287
• Added DVD create/extract support
• Removed batch updating - now we just go to github
• Other fixes and tons of changes