Update RabbitMq/Consumer.php

Add a method which checks if a consumer is consuming more ram memory than it has assigned
Update Command/BaseConsumerCommand.php

Adds memory-limit option
Update Tests/Command/ConsumerCommandTest.php

add memory-limit option to testInputsDefinitionCommand
Update RabbitMq/Consumer.php
Update RabbitMq/Producer.php

Allow developer to establish delivery_mode and content_type
Update RabbitMq/Consumer.php

Change method with checks is process is memory overloaded
Update Command/BaseConsumerCommand.php
Update README.md
Update README.md
Update Command/BaseConsumerCommand.php

Set NULL as default option for memory-limit  and only call ini_set if memory-limit is not null
Update RabbitMq/Consumer.php

Checks memory-limit is not null before checking whether memory in use is greather then memory limit
Update RabbitMq/Producer.php
Update RabbitMq/Producer.php
Update Command/BaseConsumerCommand.php
Update RabbitMq/Consumer.php
Update RabbitMq/Producer.php

Curly brackets of setDeliveryMode and setContentType on the next line
Update README.md

Memory-limit description has to be in memory-limit branch readme
Update Tests/Command/ConsumerCommandTest.php

Assert for memory-limit options belongs to the other branch. Does not have to be setted here. Deleted
Merge pull request #91 from icolomina/content-type

Content type