Tag 2.7.6.

2.7.5.

2.7.4.

2.7.3.

Bump version to fix cabal test

Bump version number (again).

Update copyright year

Merge pull request nick8325#3 from nh2/function-tuple-instances

Add convenience Function instances for up to 7-tuples

Actually change the version number.

Fix bounds in extensible-exceptions.