C++ 2014 and additional C++11 compatibility

occ:    support C++ 2014
occ:    c++11 compatibility: handle reference-to-auto properly
occ:    c++11 compatibility: 'final' and 'override' are not counted as reserved words any more (but still function)
occ:    c++11 compatibility: allow scoped use of strongly typed enumerations
occ:    c++11 compatibility: fix problems with assignments and initializations
        that use structured type cast operators with and without 'explicit'
occ:    c++11 compatibility: implement 'using typename =' for both templates and non-templates
occ:    c++11 compatibility: allow taking sizeof a nonstatic class member
occ:    c++11 compatibility: aggregates can have explicitly defaulted or deleted constructors
occ:    c++11 compatibility: optimize lambda code generator by getting rid of calls to RTL helper functions
occ:    fix problem with generating object files from sources that had
        the addresses of structure members as initialization data
occ:    fix problem where initialization of basic types from a structured type did not search the class
	for a suitable conversion function
occ:    fix problem where implicit cast from a structured type to a basic type during an initialization
	generated bad code
occ:    fix bug where printf("%d\n", zz().r); generates bad code.   zz() is a function returning struct
occ:    using decltype in an explict cast failed
occ:    various bug fixes for access checks
occ:    enumeration constants inside classes needed to have their access level set
stl:    enable strong enums, relaxed constexpr, using=