Atlased sprite sheet editor v1.1.1a hotfix

Atlased hotfix 1.1.1a is out.

Fixes:

• Fixed origin points visibility not switching off
• Fixed origin points accumulated rounding error
• Fixed undo-redo related crash originated from regions panel events
• Fixed selection resets (more consistent now, de-selections will only occur on create/remove operations)

New features & improvements:

• Added button leading to the online user manual inside of the "Help" menu
• Now regions are updated immediately when corresp. controls are pressed inside the regions panel
• Enabled adjusting values with a mouse wheel inside of the regions panel (only when control is focused to prevent UX bugs while scrolling). Simple scrolling adjusts value by 1, Ctrl+scroll adjusts value by 10.

Misc:

• Documentation versions bump for Atlased and Tiled