SpecInterface::setPending and SpecInterface::isPending
pending spec does not run
result pends specs
spec result broadcasts spec:pending event
set child spec pending to parent pending state
pending runner event and basic reporter update
pending state on specs
report pending results
test pending status of describe
test pending status via context
rename isPending to getPending to reflect null possibility
test suite pending status is transferred
Merge branch 'develop' into feature/pending-specs-and-suites

Conflicts:
	src/Core/AbstractSpec.php
Merge pull request #28 from brianium/feature/pending-specs-and-suites

Feature/pending specs and suites