Tests written for the update part of the class.
Added '@covers' tags to the tests.
Added tests for the Template Entity
Added proper covers annotations to the AbstractOptionsFactoryTest
Added tests for the input filter.
Rewrote the template service tests
add   * @covers ::<!public>
Added tests for the input filter.
Added missing docblock to make @ocramius happy :)
Added a missing dependency
Added tests for the listener 'UpdateTemplateParametersListener'
Corrected a test for the listener 'UpdateTemplateParametersListener' and added tests for the 'EnginePluginManager'
Added a test for the EchoResponse class.
Added tests for 'Twig'.
Fixed the initial statements.
Tests for EmailServiceOptions written.
Tests for TemplateServiceOptions written.
Tests for TwigOptions written.
Merge remote-tracking branch 'jonas/code-coverage' into code-coverage

Conflicts:
	test/EmailTemplatesTest/InputFilter/TemplateInputFilterTest.php
Renamed paramsUpdatedAt to parametersUpdatedAt and added @covers annotations to the template entity test class