Fixed unit tests for PHPUnit 3.6
Added configuration file for Travis CI
update tests to use phpunit 3.7 API - Changed assertAttributeType -> assertAttributeInstanceOf and assertType -> assertInstanceOf
Fixed: removed unnecessary version check which caused test suite to fail.
Merge pull request #14 from lapistano/phpunitCompat

Merged noels and my changes
added example for a markup replacer
Merging phpunit fixes and composer file
Fixed example
Resolved merge conflict