updating argument defaults and fixing bug which caused overwrite to fail
removing luts sub-package
removing arrayfuncs sub-package
removing subpackages from tools
updating module imports and doc sources
moving functions from tachyon_render script into fiofuncs
moving I/O funcs from tachyon_render to fiofuncs in tools
catch OSError, not IOError and misc changes
pass aspectratio kwarg when calling get_mpl_rcParams
update plotgenerator and xyplot configspec to handle legend bbox_to_anchor and mode arguments
adding new profile for double column figure