CI Improvements

 - Expands the Travis build file by adding newer PHP versions, telling composer to update itself before running and using the local PHPUnit instead of the global install
 - Set PHPUnit development requirement to version 4
 - Updates composer.lock file
 - Removes unneeded entries from phpunit.xml.dist file
Bumps project version in composer file to 0.0.1
Merge branch 'release/0.0.1' into develop