Add some initial tests for UrlUtils
Cleanup phpunit.xml.dist and add real bootstrap script
Revert phpunit bootstrap change
Remove XML attributes that use default values
Update travis config

- `travis_retry` handles network failures better
- Add common flag for composer
- Using proper phpunit binary location
Add more tests for URLs
Merge pull request #2 from RSully/pr_enhance-urltests

Add some initial tests for UrlUtils