[fluxus] 0.11 on mac osx update

[Artem Baguinski]

hi

i've been working on fixing osx build on a train this morning, i'm
alsmot there, expect binary for testing by tomorrow night.

at the moment I have:

- support for dependencies in multiple non-standard locations
- support for remembering (some) scons command line options, so that
you don't have to retype `scons
DEPS_PREFIX_PATH="/opt/local:/opt/v2:/opt/fluxus"` every time
- several tiny fixes for compiler bitching
- instructions for recreating my build with dependencies in Darwin
Ports and self built, including fixing stuff that doesn't want to
build "out of the box". instructions should be usable with other
configurations with minimal deviations (paths, command lines to build
/ install the software on other ports systems, e.g. fink or gentoo)
- fluxus gets build and works

still todo:
- finding where guile is installed (looking in all the prefixes
provided) to copy the scheme files over to application bundle
- proper glew support (i had no internet connection on a train and
just put glew into fluxus sources)
- saving other aruments too (X11 and multitexturing)
- detecting mutitexturing using glew
- more instructions (at the moment i used our macosx SDK for some
dependencies and therefore there are no instructions on building
those, but I can just copy them over from SDK instructions).
- test built binary on pristine machines
- test the build system on machines with different configurations