Remove error checking and compatibility code before v2.0.0.

Closes #25.
Add test to handle reloading styles in-place

Add test to handle reloading styles in-place
Merge pull request #162 from rviscomi/reload-style-in-place

Add test to handle reloading styles in-place
Update website to use GitHub icons.

Replacing the included icons from Web Starter Kit with those from Octicons
provides a wider array of icons and an built-in icon for linking to GitHub.
Merge pull request #163 from nicksay/web

Update website to use GitHub icons.
Add a Rake task to stage website changes for release.
Merge pull request #160 from nicksay/remove-script-style-transition-code-2

Remove error checking and compatibility code before v2.0.0.
Include both name and version in distribution file headers.

Before, file headers started with `SPF X.Y.Z`.  Now, they will start with
`SPF NN (vX.Y.Z)`.
Merge pull request #166 from nicksay/version-fun

Include both name and version in distribution file headers.
Reload new stylesheets in-place.

Add a new optional parameter to resource.create, the URL of the resource to reload.
When creating a new stylesheet and this param is set, add the new element at the same position as the existing one.

Closes #100
Merge pull request #167 from rviscomi/in-place

Reload new stylesheets in-place.
Website: Rename the "nav" Jekyll plugin to "sitenav".

This makes searching for the plugin easier and helps communicate
that the plugin provides builds an index that is both for navigation
and that is a sitemap.
Merge pull request #165 from nicksay/web-release

Add a Rake task to stage website changes for release.
Website: Restore Web Starter Kit icons.

The Web Starter Kit icons are still used by some built-in styles,
such as lists and call-to-action links.
Website: Link to the GitHub repository in the main navigation.
Website: Improve documentation navigation on mobile.
Merge pull request #169 from nicksay/web-icons

Website: Restore Web Starter Kit icons.
Merge pull request #170 from nicksay/web-navigation

Website: Improve documentation navigation on mobile and link back to Github.
Merge pull request #168 from nicksay/web-sitemap

Website: Rename the "nav" Jekyll plugin to "sitenav".
v2.0.0