Merge branch 'release/1.8.3' into develop
Better detection of custom matcher for RSpec 2.99
RSpec 2.99 was a upgrade path release which caused problems with the way we were detecting which custom error failure methods to define.
Update change log with last fix.
Merge branch 'feature/fix_rspec_299' into develop
Release 1.8.4
Merge branch 'release/1.8.4'