(SSR) fixed_vector: de-activate ctor from size and allocator

For some reason, the relevant constructor from std::vector is not in
C++11.
However, it will be included in C++14.
(SSR) More includes to avoid clang warnings
(SSR) Add stringtools testcase without whitespace
(SSR) More unit tests for stringtools
(SSR) stringtools: change handling of whitespace

This should resolve an issue with libc++:
When std::ws was used at the end of a stream and no whitespace was
available, the failbit was set.

See also: http://stackoverflow.com/q/13423514/500098
(SSR) Minor fixes for libc++ compatibility
(SSR) Move generic helper functions for mex-files to APF
(SSR) Change copyright year to 2014
(SSR) parameter_map: add constructor from std::map
(SSR) mextools: add conversion from struct to std::map of strings
(SSR) mextools: add a few more helper macros
(SSR) Add macro APF_MEX_ERROR_SAME_NUMBER_OF_ROWS
(SSR) Make S2A() less general (and much simpler)
(SSR) S2A()/S2RV(): add overloads for strings (which don't "eat" whitespace)
(SSR) Add example showing how to make JACK connections
(SSR) MEX: Add macro APF_MEX_ERROR_ONE_OPTIONAL_OUTPUT
(SSR) Use private inheritance + "using"

... instead of public inheritance.
(SSR) Change the way of using "using"
(SSR) Get default number of threads automatically

... with std::thread::hardware_concurrency()
(SSR) Fix wrong use of "using"