there are now three startup files; ost_startup.py (former init_cl.py) initializes non-gui ost; dng_startup (former init.py) initializes dng; and gosty_startup initializes gosty (some issues remain what to put into dng_startup as opposed to gosty_startup). also, files are now properly placed into site-packages/ost (on osx and linux)

added slider to change verbosity level from gui
if the verbosity level is changed from the shell the slider is updated automatically

This fixes BZDNG-171

For debugging purposes

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specifically, remove LOGN_* macros and introduce new logging levels. We now
have ERROR, WARNING, INFO, VERBOSE, DEBUG and TRACE. DEBUG and TRACE are
turned off under NDEBUG and expand to an empty macro.

new default verbosity level displays ERROR/WARNING/INFO

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a dialog pop-up the first time a user starts DNG on the Mac and
asks if symlinks for the command-line tools should be created.

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not existing


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rewrote quad buffer handling; dng requires explicit -S or --stereo flag to try and allocate stereo visual; if successful, stereo mode 1 will work without explicit switching of glformat in qwidget (which was broken and deprecated)
mapped glcanvas ctrl-0 to shadow toggling and ctrl-9 to ambient occlusion toggling
fused interlaced and quad based stereo to nearly the same code (2 lines different), incorporating deferred shading into both stereo modes
added experimental ambient occlusion algorithms; added experimental ambient occlusion quality
added shadow map weighting
renamed GfxObjBase::Outline and GfxObjBase::AALines to SetOutline and SetAALines, resp




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 - GLWin and SpaceNav

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Fixes BZDNG-74

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