Release 3.2.0

- Fix regression with expression evaluation by reverting commit
  `Correction to the way parens are parsed in query expressions` (bug ledger#1894)

- Fix --invert breakage by reverting commit `Change --invert to invert
  displayed amounts and totals, not amounts` (bug ledger#1895)

- Fix performance regression by reverting commit `Compare price
  annotations using their textual rendering` (bug ledger#1907)

- Fix library path issue (bug ledger#1885)

- Allow specifying the Python version (bug ledger#1893)

- Some documentation fixes

Release 3.2.0

Release 3.1.3

[doc] Correct boost versions

whose build issues are fixed with the ledger 3.1.1 release.

[ci skip]

Tag ledger 3.1

Fix minor formatting issue

Require the use of C++11

Merge pull request ledger#263 from afh/pull/301-version

Bump ledger version components in cmake