Add `!important` to the declarations

Utilities should always have their trait applied. To avoid instances
where a component class would affect the same properties that a utility
needs to function, `!important` is used to avoid being part of the
same cascade resolution.
Add color inheritance utilities

Two new utilities: `u-textInheritColor` and `u-textInheritAllColor`.

Fix gh-5
Fix paths to SUIT repos in README
Add Component(1) install to README
Update CHANGELOG
Remove non-standard `word-break` value

`break-word` is a non-standard value of `word-break` that only WebKit
understands. It doesn't seem to be necessary to include as the other
declarations also cause text to break/wrap in contemporary WebKit
browsers.
Add CSSLint test and configuration
Update CHANGELOG
Add section on testing to README
v0.2.0