Detailed changes:
=================

+ added stlsoft_C_environment_variable_exists_a() / environment_variable_exists() (from STLSoft 1.10-alpha)
+ added stlsoft::count_bits(int) overload
+ added cbegin(), cend(), crbegin(), crend() to platformstl::environment_map
+/- significant additions and removals of WinSTL file creation functions
+ added WinSTL security functions (from STLSoft 1.10-alpha)
+ recognising Mac OSX architecture as UNIX
~ canonicalising '\file' description sections
~ suppresses deprecation warning from reporting use of deprecated functions inside other deprecated functions