test

Remove blake since it doesn't have an ARM version

Add real time CSP procedure support.

Unify coroutine and subroutine into just continuation object.

Add Felix interface to real time allocators.

More alloc stuff

Fix bug in channel refcount

Add package channel.hpp which contains most of the old code

System allocator with rough test.

Add real time allocators.

Some fixes.

Fix the inifinite loop in variant expansions.

Expand polyvariants in beta.

Fix mathjax reference

Add extra keywords for flx2html to colour.