Removed Some Wrong License Headers

Fixed: The query classes in the integration module now have correct license headers.
Purged Version Parsing out of FilesQuery

Added: There's now a seperate class "VersionParser" for parsing versions. The FilesQuery now uses that class for populating the version property of ProjectFiles.
Integration Classes Adopted API Changes

Note: The integration classes which are copies of the main api are now up to date with it.