Fix #62: Correct style guide typos
JS Style Guide: Added note about es3 option for JSHint.
1.0.18
JS Style Guide: Move es3 setting for JSHint into repo-specific settings.
Commits/PRs: Write new guidelines for commit messages.

This replaces the existing commit guidelines, to be used by all jQuery projects,
replacing the rules that jQuery UI used. This commit message itself follows
those new rules as well.

It changes usage of 'ticket' to 'issue' in one other place, to have a
consistent term instead of a mix of both.

Fixes gh-59
1.0.19
CLA: Inline the form instead of using an iframe for Google Docs

Fixes gh-46
1.0.20
Docs: Removed IRC channel links in CONTRIBUTING.md

GitHub doesn't support links with the irc protocol, so these were dead links.
Build: Upgrade to grunt-jquery-content 0.11.0
CLA: Use markdown for all headers
Bug Reports: Mention issue trackers for web sites
Code: Added more cross-references to other pages
Code: Fixed link that pointed to a local install
1.0.21
Community: Add section on documentation

Added a section on contributing to documentation and web sites. Also changed
the language to be less developer-centric and more community-centric.

Closes gh-66
JS Style Guide: Fixed typo

Closes gh-67
Commits and Pull Requests: Remove example using `git commit -m`

Contributors should be using an editor to compose their commit messages since
they're almost always multi-line now.
1.0.22
Wontfix: Clarified our position on SVG and VML

Closes gh-68