Allow cm2 instead of cm^2 in flux units
fix specrange when n lt bundle size; fix flux header EXTNAME
update README
Fix xyrange bug when wavelengths extend off CCD; still not fully covered by unit tests
Fix bug in writing WAVESTEP keyword
update docs, FITS header formatting; support GEOMAREA or EFFAREA for throughput header
Support BUNIT and Ang vs. A
fix bug when projecting spectra larger than xyrange
Go back to faster but less accurate throughput
swapped phot,wave -> wave,phot in project()
Merge branch 'project_swap_phot_wave' into dev,
swapping project(phot,wave) for project(wave,phot)
Allow arcsec2 vs. arcsec^2
Added wavemin/wavemax to throughput
bug fix for throughput.wavemin/max syntax
Merge branch 'dev'