Update "chai" to version ~3.5.0

[marekventur]

#3.5.0 / 2016-01-28

• Merge pull request #601 from keithamus/release-3.5.0
  chai@3.5.0
• chai@3.5.0
• Merge pull request #589 from qbolec/add-includedeepmembers
  Added includeDeepMembers
• Added includeDeepMembers
• Merge pull request #579 from chaijs/greenkeeper-karma-0.13.16
  Update karma to version 0.13.16 🚀
• chore(package): update karma to version 0.13.16
  http://greenkeeper.io/
• Merge pull request #577 from zetaben/patch-1
  Fix non ES5 compliant regexp
• Fix non ES5 compliant regexp
  ES5 appears to require that { be escaped when not used as part of a quantifier. While this works fine in browsers it appears to choke less lenient runtimes (e.g. Duktape).
• Merge pull request #575 from lucasfcosta/clean-browser-before-karma
  Clean browser before karma
• Details on cleaning and testing on CONTRIBUTING.md
• Run clean-browser before testing with karma
• Merge pull request #573 from gdelmas/assert-isobject-documentation
  clarified assert.isObject & assert.isNotObject documentation
• clarified assert.isObject & assert.isNotObject documentation
• Merge pull request #570 from jurko-gospodnetic/fix-error-message-string-substitutions
  Fix error message string substitutions
• fix error message tag substitution
  String.prototype.replace() had some extra undesireable substitution behaviour
  when it replaces a tag with a string containing some internal tags like $$,
  or $'.
  For more detailed information see:
  https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace#Specifying_a_string_as_a_parameter
• split up getMessage() tests
• Merge pull request #567 from outsideris/badges-for-chat
  add badges for Slack and Gitter
• add badges for Slack and Gitter
  close #564
• Merge pull request #566 from lizhengnacl/master
  clerical error
• clerical error
• Merge pull request #565 from chaijs/add-code-of-conduct
  Add Code of Conduct
• Add Code of Conduct
• Merge pull request #561 from DavidBR-SW/Should_interface_docs
  Added JSDocs to 'should' interface
• Added JSDocs to should interface
• Merge pull request #553 from keithamus/release-3.4.2
  chai@3.4.2
• chai@3.4.2
• Merge pull request #552 from keithamus/add-namespace-to-docs
  (docs) Add namespace to all public methods
• (docs) Add namespace to all public methods