Import parameters from arrays

There was another problem. If there was an array in parameters.yml.dist installer asked for definition of this array as a string (ex. [param1 = param1value, param2 = param2value]). Now installer is asking for all single parameters step by step and putting it to parameters.yml in not inline array.

You can define when system should define inline arrays in extra parameters in composer.json as yml-depth and default value is 99 as in master.