improve number/sign behavior when value is NaN. see #36
typecast val on number/sign and handle +0 and -0 properly. see #36
Merge pull request #40 from millermedeiros/sign

improve number/sign behavior when value is NaN or +0 or -0
Merge pull request #44 from conradz/clock-mock

Use jasmine.Clock to mock the JS clock for timing tests
fix string/replace spec on IE7 and rename 3rd argument to replacements

spec was failing on IE7 because strings chars can't be accessed with `[0]`
notation. Also renamed 3rd argument to `replacements` to make it different from
the function name (jshint stops complaining and easier to understand).
Merge pull request #45 from millermedeiros/str_replace_ie7

fix string/replace spec on IE7 and rename 3rd argument to replacements
Add object/equals
Fix bug in object/equals and add test for bug
Add object/deepEquals
Do not check `.constructor` in object/equals and object/deepEquals
Clarify own property behavior in object/(equals|deepEquals)
Add spec for different key order in object/equals
Rewrite docs for object/(equals|deepEquals).
Update changelog