Add `has` to language chains
support `{a:1,b:2}.should.include({a:1})`
add failing test case
handle negation correctly
Merge pull request #226 from duncanbeevers/add_has

Add `has` to language chains
Remove coveralls
Remove jscoverage
Test coverage with istanbul
Remove the not longer needed lcov reporter
Remove lib-cov from test-travisci dependents
Add coverage to npmignore
Merge pull request #237 from chaijs/coverage

Remove coveralls & generate coverage with istanbul
Merge pull request #230 from jkroso/include

support `{a:1,b:2}.should.include({a:1})`
Automatically rewritten for npm.