Do not remove short compounds from the field

[yarcat]

Proposal

Short compounds have to be highlighted, BUT NOT REMOVED
Medium length compounds have to be highlighted, and can be manually removed
Long compounds could be removed automatically

TODO

Define short, medium and long.

See also

• Limit minimal compound length #21 Limit min length of the compounds
• Manual compound removal. #26 Manually remove compounds from the game field

[yarcat]

Let's create an experimental, which doesn't remove elements from the screen automatically.

[soulne4ny]

This implies #26 manual compound removal.