Remove deprecated plusOrMinus syntax
Drop Specs trait, which has been deprecated since 2.0 release,
one year ago.
Merge branch 'remove-deprecated-specs' of https://github.com/gulaputih/scalatest into 2.2.x
Throw NotAllowedException for be ===
Restore a test in TestCanceledExceptionSpec
Merge branch 'fail-deprecated-be-tripleequals' of https://github.com/gcberger/scalatest into 2.2.x
Changed error message given for be === syntax.
Removed ye olde org.scalatest.matchers.ShouldMatchers, which has been deprecated
since the 2.0 release, which came out over a year ago. King of sad to see them go.