doc: Added Q_DECL_NOTHROW to Cpp.ignoretokens
doc: Added Q_DECL_NOTHROW to Cpp.ignoretokens

This macro was unknown to qdoc.

Change-Id: I45c98c8414a469efffe73de1fa2145ef98998b10
Reviewed-by: Jeremy Katz <b22d0e8c88d8b73fa8743e72fec96c77a81f8436@nokia.com>

kobolabs/qtdoc,kobolabs/qtdoc,kobolabs/qtdoc,kobolabs/qtdoc