DateFormat.php: Set default format in __construct()
PublisherFixerMetadataParser.php: Use Utils to get the base domain
Remove redundant index.html
index.html: Add missing <html>
Rename NoSuchDateFormatException.php
tests: Add DateFormatTest
wikitoolbox.js: Bump version to 5
tests: Add MetadataParserChainTest and supporting mock objects
phpunit.xml.dist: Add coverage report generation

Signed-off-by: Zhaofeng Li <hello@zhaofeng.li>
Add php-coveralls to composer dev dependencies

Signed-off-by: Zhaofeng Li <hello@zhaofeng.li>
.travis.yml: Add Coveralls.io integration

Signed-off-by: Zhaofeng Li <hello@zhaofeng.li>
README.md: Add Coveralls.io badge

[ci skip]

Signed-off-by: Zhaofeng Li <hello@zhaofeng.li>
MetadataParserChain.php: typo

Signed-off-by: Zhaofeng Li <hello@zhaofeng.li>
MetadataParserChainTest.php: Improve coverage

Signed-off-by: Zhaofeng Li <hello@zhaofeng.li>
MetadataParserChainTest.php: Improve coverage & mark HHVM-incompatible tests

Signed-off-by: Zhaofeng Li <hello@zhaofeng.li>
result.js: Remove code related to php-diff
Use <ul> for the footer link list
core.css: Button colour tweaks
Add bootstrap.php to simplify dependency/config loading

Signed-off-by: Zhaofeng Li <hello@zhaofeng.li>
Introducing LinkHandler

Signed-off-by: Zhaofeng Li <hello@zhaofeng.li>