Edits from Tegmark
Another updated imaging plot from Jacobs.
Tex from Furlanetto, with edit options commented.
Edits from Furlanetto un-commented.
Filled in references and trimmed down to the length requirements.
Merge branch 'furlanetto'

Conflicts:
	msip_pre/proj_description.pdf
	msip_pre/proj_description.tex
Comments from Hewitt.  Fixed citation to Dillon et al. 2013
Changes from Mesinger/Ewall-Wice
Added McQuinn priv comm cite to imaging figure.
Tweaks to facilities to conform to cost sharing rules.
Strict re-wrap of text in facilities.tex
Clean-up of text in facilities section.
Wording changes in project summary.
Few last-minute minor wording changes.  Update to xray fit.
to allow merge...