more emacs-mode font-locking bugfixes
add quiet option to sys:load
add 'quiet flag to precomp lib load calls
refactor precomp stuff

add sys:precomp:currently-compiling? and sys:precomp:suppress-precomp-do
remove reference to definec in DSP callback message
add 'quiet flag to initial load call for std.xtm
emacs: update eldoc to show better (and colored) type and arg lists
renanes for jansson lib
add sys:get-env
add setenv & unsetenv
improvements to printing HTTP request bodies
even prettier eldoc minibuffer message
add note-to-midi function
bugfix for note-to-midi
bugfixes for eldoc string echoing
add subtonic to chord syms list
add precomp header/footer to cairo lib
add precomp header/footer to jansson lib
Merge branch 'master' into better-gl

* master:
  add precomp header/footer to jansson lib
  add precomp header/footer to cairo lib
  add subtonic to chord syms list
  bugfixes for eldoc string echoing
  bugfix for note-to-midi
  add note-to-midi function
  even prettier eldoc minibuffer message
  improvements to printing HTTP request bodies
  add setenv & unsetenv
  add sys:get-env
  renanes for jansson lib
  emacs: update eldoc to show better (and colored) type and arg lists
  add 'quiet flag to initial load call for std.xtm
  remove reference to definec in DSP callback message
  refactor precomp stuff
  add 'quiet flag to precomp lib load calls
  add quiet option to sys:load
  more emacs-mode font-locking bugfixes

Conflicts:
	libs/external/assimp.xtm
	libs/external/shaders.xtm
	libs/external/soil.xtm