Update PrintPriceExtension.php

Small docblock changes
Some minor fixes solved.

* Also removed non-controlled services and handlers
* All productBundle Repository logic has been deleted
Issue #13 Added interface into OpenExchangeRatesService
Issue #13 Removed unused namespace
Small docblock fixes
Issue #24

* Tests are not done
* Issue not ready
Issue #26. Migrating to PSR-4
Added README.md files into all Components
Issue #26 Fixed some Components PSR4 namespaces
Fixed typos/CS
Issue 26 Fixed PSR-4
Some fixes in all bundles

* Updated AppKernel and main dependencies
* Updated all LICENSE files
* Updated all bundle composer files where expression language was needed
* Updated all bundle composer files, adding http-kernel dependency
Result of "php-cs-fixer fix src/Elcodi"

* All are minor format issues
Closes #60 All phpunit.xml to phpunit.xml.dist and .gitinore files