Global service ID conflicts when m2if is used inside another Symfony app

[adhocore]

Some service IDs like configuration, loggers, connection are used in global context: ref: https://github.com/techdivision/import/blob/15.x/symfony/Resources/config/services.xml

it would be best to have them namespaced like so: import.configuration, import.loggers, import.connection

to not break BC, we can alias them to their original IDs.

(PS: there can be more such service IDs than mentioned above)

[wagnert]

@adhocore You're right, this are technical debts we've to solve. I'll add this to the next release.