Merge pull request #7 from jwoschitz/master

Use full qualified class names instead of just relative parts to check return values
Formatting
Moved documentation in readme to executable specification
Adapted spec for dox
Updated readme
Updated readme
Removed unnecessary dependency to nikic/php-parser
Added links in "Further Documentation"
(doc) Inlined class definitions in Introduction
added tests for return value validation if the type hint contains short array syntax
added rule when parsing type hints to substitute hints with short array syntax with plain array (e.g. MyClass[] => array)
Merge branch 'master' of https://github.com/jwoschitz/mockster