2.7.0.1

• Added the missing Control.Lens.Combinators to exported-modules! Its absence was causing it not to be included on hackage.

2.7

• Generalized the signature of Getting, Acting and IndexedGetting to help out with the common user code scenario of needing to read
  and then write to change types.
• Documentation cleanup and additional examples.
• Renamed au to ala, introducing further incompatibility with the newtype package, but reducing confusion.
• Removed need for Data.Map.Lens and Data.IntMap.Lens by adding TraverseMin and TraverseMax to Control.Lens.IndexedTraversal.
• Flipped fixity of ~: and <~:
• Added ++~, ++=, <++~ and <++= to Data.List.Lens in response to popular demand.
• Added |>, <$!> and <$! to Control.Lens.Combinators, which exports combinators that are often useful in lens-based code, but that
  don't strictly involve lenses.
• Added an HUnit-based test suite by @orenbenkiki