Introduce assertions for each type as in Vows
Added assertions for NaN

Use
x.should.be.NaN;
or
x.should.not.be.NaN;
isNaN now rejects all non-numbers
Add markdown syntax highlighting to README.md
Fix should.be.instanceOf() failure on Date

* Improvement to #56 to address should.be.instanceOf() failure on Date
reported at #65
* More tests for should.be.instanceOf()
Merge pull request #99 from skovalyov/instance-of-date

Fix should.be.instanceOf() failure on Date
Merge pull request #95 from ulikoehler/master

Fix missing syntax highlighting in README
Release 1.2.2
added conventional Node.js script 'npm test'
eql should compare with ==

eql implies it provides non-strict equality checking, but in some cases
falls back to using === even though the accompanying comment indicates
it should do otherwise. Restore == comparison and fix affected test.
Exclude regular files generated by OS in repository

Just for convenience.
Merge pull request #124 from tjwudi/master

Exclude regular files generated by OS in repository
Add tests and docs for undocumented method approximately. Also make it has more obvious description.
add .startWith (close #119)
Revert "add .startWith (close #119)"

This reverts commit 26500488b884167f8e854d250b09acb422746450.
add .startWith (#119)
Added complimentary method #endWith(). Fill changelog
Fill doc for endWith
Revert not tested .valueOf edge case
Fix doc for .keys. Closes #108.