Merge pull request #9 from MaxRebhorn/Issue-#6-Composer-requirement-o…

…f-roave/security-advisories-dev-master-instead-of-recommended-dev-latest

Issue #6 composer requirement of roave/security advisories dev master instead of recommended dev latest

Merge pull request #5 from RunOpenCode/feature/library-update

Updated library and added callback handlers

Stack is available for AbstractStackedSaxHandler

Fixed SaxParser factory, included StringAdapter.

Added support for XML code as string via StringAdapter

Namespaces supported.

Improved namespace detection.

Fixed issue with namespace declaration

Hotfix for onData handler

Fixed encoding.