Minor rewording/tweaks
Replace tab characters by spaces in bibliography file
Merge pull request #12 from astrofrog/minor-fixes

Minor rewording/tweaks
Fix typo by removing "appear"
Add two more authors
removed extra parenthesis at the end of Economou's citation
comma after HDF5
new author: Hagen
corrected a few grammatical errors

other comments were detailed in an email to Tim
Merge pull request #13 from astronomeralex/few-grammatical-changes

corrected a few grammatical errors
Add missing doi
Cite a paper discussing of once FITS, always FITS rule
Note we are inconsistent in always vs forever
Greisen 2003 discusses the hierarchical grouping issue
Add new author: Paul Hartogh
Merge pull request #14 from migueldvb/local

Add new author: Paul Hartogh
Add author: Klaes
Dispense with footnote on forever FITS and cite V1 of standard properly
Fix quoting of title
Allow line breaks of URLs

Some of the URLs were causing trouble because of their length