Fix: changed phpunit/php-text-template requirements to >=1.1.4
For example, when using with phpunit/php-code-coverage:
 - phpunit-skeleton-generator requires phpunit/php-text-template=1.1.4
 - but php-code-coverage requires phpunit/php-text-template>=1.2.0
Merge pull request #33 from tcpiptan/composer_spike

Fix: changed phpunit/php-text-template requirements to >=1.1.4