Merge branch 'release/1.3.1'
Merge branch 'release/1.3.2'
Merge branch 'release/2.0.0-alpha1'
Merge branch 'release/2.0.0-alpha2'
Update to latest perforate version.
Update .gitignore.
Delete old benchmark notes file.
Update version to 2.0.0.
Update README.md for 2.0.0.
Merge branch 'release/2.0.0' into develop
Fix merge conflict in perforate version in project.clj.