try to fix mysql installtion on travis
try to fix mysql installtion on travis

SanderVerkuil/EntityAuditBundle,platosinski/EntityAudit,platosinski/EntityAudit,artursvonda/EntityAudit,SanderVerkuil/EntityAuditBundle,artursvonda/EntityAudit,SanderVerkuil/EntityAuditBundle,platosinski/EntityAudit,artursvonda/EntityAudit