fix bug on attribute mapping
Wip on sources and target
Fix reader name #96

Fix missing 'pim_base_connector.reader.orm.product' by
replacing service names in files.
Update composer.json file to ensure compatibility with pim-community-dev
Fix failed test #96

Changed use path in file
Fix phpspec fails #96

Renamed FlexibleBundle into CatalogBundle
Fix issue on spec ORMAttributeMapper #96
Fix Mapping collection #96

Fixed issues in add() function.
Fix phpspecs #96

Fix getMapping() function
Fix spec MagentoAttributeMapperSpec #96
Fix function  #96

Protected to private
Fix add function  #96

Removed $oldValue var
Fix soap url #98

Soap url must end by a trailing slash.
MagentoUrlValidato is now able to check that.
Fix remove slash in magento url #98
Fix crash on error when you give an uncorrect url to soap service #98 #97
Code refactoring #98 #97

Move duplicated code into unique function
Fix magento user rights on soap api error #98

When we try to access soap api with an user with any roles the
SoapClient php api throw an error. This error is now caught by the
validator and return a nice error message.
Fix php phpspecs and validators optimisation #101
Fix soap url validation and code cleaned #99 #101
Refactoring for pull request #99
Code refactor and clean in MappingCollection.php #99

return null deleted in getTarget() and getSource()