Fixed some typos.
Updated the docs.

 * Added a function reference guide.
 * Created a docs directory for secondary documentation.
Updated the redirect() method so that it exists by default.
Made the install docs more consistent and added nginx docs.
Removed the PHPUnit bug fixes since 3.5 is available now.
Removed all references to the deprecated `PHPUnit_Framework_TestCase::assertType()`.
It's 2011.
Skip the Dwoo and Smarty tests if the corresponding libraries aren't available.
Now works well with https://github.com/sebastianbergmann/php-jenkins-template.
Removing the documentation generation for the time being as phpDocumentor doesn't support PHP 5.3.
Rearranged file-based docblocks to appease the PHP QA gods.
Rearranged class-based docblocks to appease the PHP QA gods.
Rearranged function-based docblocks to appease the PHP QA gods.
Rearranged variable-based docblocks to appease the PHP QA gods.
Removed the old-PEAR style convention of underscores before protected and private properties.
Removed the old-PEAR style convention of underscores before protected and private methods.
Adjust whitespace policy to appease the PHP QA gods.
Adjust line lengths to appease the PHP QA gods.
Adjust multiline policy to appease the PHP QA gods.
Use exceptions instead of `exit()`.