More helper functions for forgiving absence

[NorfairKing]

No description provided.

[mrkkrp]

Nothing prevents you from matching on Maybe and doing whatever you want. I see these as arbitrary additions. The idea behind good API is that you give user few general and clear functions and he/she builds on them. We should avoid adding lots of minor variations, they only contaminate namespace and confuse user.

[mrkkrp]

Basically what you propose to add amounts to fromMaybe defaultValue and fromMaybe mempty.

[NorfairKing]

Hm, good point.
Carry on!