Fix ... from PECL extensions
Merge pull request #15 from henrikbjorn/class-mirror-varying-arguments

Fix ... from PECL extensions
added logical AND token and a shortcut for it
updated formatting in logical AND token and its spec files
updated constructor visibility in logical AND token and replaced ```join``` with ```implode``` for consistency
Merge pull request #16 from kagux/and_token

Logical AND token and a shortcut for it
Update setup instruction in README

[ci skip]
added array count token
renamed array count token shortcut to ```size```, cleaned up its spec and improved readability of its ```scoreArgument``` method
Merge pull request #17 from kagux/array_count_token

Array count token and a shortcut for it