TD-19 Add APIConnection-class
TD-19 Fix APIConnection-class

Add missing deviceSessionId and fix constructor.
TD-19 Add APIConnection entry to APIEntity XmlSeeAlso
TD-19 Add missing APIConnection entry to jaxb.index
TD-19 Fix APIConnection::type member
Merge pull request #279 from spedepekka/devel

TD-19 Add APIConnection-class