add .css()
allow all whitespace chars
remove uneeded .trim()
.css(undefined) should return all styles
add .data() function. cleaned up PR #221, added tests, updated readme
worked in @MatthewMueller 's comments on PR #264
worked in @fb55 's improvements for PR #264
Remove extra whitespace
Document `contents` and add test
Merge pull request #270 from jugglinmike/doc-contents

Document `contents` and add tests
Merge pull request #264 from andi-neck/master

add .data() function. cleaned up PR #221 from @rafaelrinaldi, added tests, updated readme
Add contributing guidelines
Merge pull request #271 from jugglinmike/contributing

Add contributing guidelines
Merge pull request #253 from yields/master

add .css()
Add .toggleClass() function
added additional tests for .toggleClass()
Merge pull request #278 from cyberthom/master

Add .toggleClass() function
Release 0.12.3
Update code style

Normalize usage of spaces and semicolons.
Manage context explicitly

Instead of passing the context as a required first argument, manage it
using JavaScript's `Function#call` facilities. This makes private
functions easier to read and maintain.