Without these functions, it was impossible to use these classes
without leaking memory. Even with these functions, the memory is
released only when these functions are explicitly called, as
old-style Matlab classes have no notion of a destructor.
Fixes#252.
A network with a single reactor can be created with either:
ReactorNet({reactor}), i.e. a single element cell array
or, the new way:
ReactorNet(reactor)
These changes make it unnecessary to copy header files around during
the build process, which tends to confuse IDEs and debuggers. The
headers which comprise Cantera's external C++ interface are now in
the 'include' directory.
All of the samples and demos are now in the 'samples' subdirectory.
