Allow use with symfony 2.5, 2.6. and 2.7
Allow use with symfony 2.5, 2.6. and 2.7
alexbilbie/Proton,protonphp/proton,phpthinktank/blast-turbine,JSila/Proton,phpthinktank/blast-turbine,HawkBitPhp/hawkbit,onedal88/Proton