Move files into new structure
Update namespaces to fit new structure
restructured api
renamed namespaces
Revert "Update namespaces to fit new structure"

This reverts commit 6fc70e87b74bb52e6b58f88d67996cac9195dfb5.
Revert "Move files into new structure"

This reverts commit 23ae38d3cb6905b19b53afba5e3ae4c689b0c208.
Merge branch 'master' of github.com:ezsystems/research
Fixed some namespace use and phpdoc
Fixed wrong classnames in phpdoc
Merge branch 'master' of github.com:ezsystems/ezp-next
Fixed errors in method signatures and phpdoc
Fiexed ,ethod signatures, phpdoc and use statements
Namespace for extended RuntimeException fixed.

The leading backslash was missing for the extended RuntimeException
class.
Initial set of PublicAPI tests added.
Typo in class doc comment fixed.
Test for SectionService::newSectionUpdateStruct() added.
Method loadSection() tested with not found variant tested.
Method loadSectionByIdentifier() tested with not found variant tested.
Remove ?> from php files
Fix todo in IO\ContentType