Move option parsing functions to options.php
New option framework
Generate form dynamically with the option metadata
options.php: Fix typo
options.php: Generate tooltips from option metadata
core.css: Remove styling for php-diff

[ci skip]
config.default.php: Make the default useragent clearer for webmasters
Allow changing default options with options.php
composer.json: Add Composer manifest
core.css: Add license header
.travis.yml: Add HHVM to build matrix
README.md: Add instructions to set up Composer dependencies
core.php: Add Composer autoloader
.travis.yml: Add Composer dependency install command
Add option to use the base domain name as work
LintTest.php: Ignore vendor directory