STLplus C++ library collection SVN makefiles

re-enabled deprecated warnings as they seem less common

adjusting the linker options for building static images, need to be more precise with mingw-w64 under MSYS2

updating version after a release

Release tag makefiles-01-11

reorganise code so default compiler flags are now in platform.mak, reformat manual to new style

Fixed copyright

Summary: Tidied up documentation, brought up to date with recent
wxWidgets usage, updated license

improved layout of lists, added a bit of highlight colour

removed all indentation from HTML code - this causes problems with e.g. empbedded code

fixed viewport for better support of mobiles and small screens