Bump "symfony/console" to allow 3.4.* instead of 3.2

[paslandau]

Hey,

installation is failing for me due to the composer constraint "symfony/console": "2.5 - 3.2",

    "require":{
        "php": ">=5.4",
        "nikic/php-parser": "^2.0",
        "symfony/console": "2.5 - 3.2",
        "symfony/event-dispatcher": "2.4 - 3.4"
    },

with

    - Installation request for psecio/parse ^0.8.0 -> satisfiable by psecio/parse[0.8].
    - Conclusion: remove symfony/console v3.4.20
    - Conclusion: don't install symfony/console v3.4.20
    - psecio/parse 0.8 requires symfony/console 2.5 - 3.2 -> satisfiable by symfony/console[...].

Is there any reason to fixate the version on max 3.2. or can we move to 3.4?

Cheers Pascal