Make the be_predicate matcher work when composed with change.

Signed-off-by: Sam Phippen <samphippen@googlemail.com>
Remove an extraneous whitespace in be.rb

Signed-off-by: Sam Phippen <samphippen@googlemail.com>
Fix some whitespace in change_spec.rb

Signed-off-by: Sam Phippen <samphippen@googlemail.com>
Add a passing change/be_predicate spec.

Signed-off-by: Sam Phippen <samphippen@googlemail.com>
Use description instead of the matcher in failure_message_for_expected_after.

Signed-off-by: Sam Phippen <samphippen@googlemail.com>
Add a changelog entry for #277

[ci skip]

Signed-off-by: Sam Phippen <samphippen@googlemail.com>

Conflicts:
	Changelog.md
Merge branch '2-99-maintenance' of https://github.com/rspec/rspec-expectations into 2-99-maintenance