Merge pull request #11 from migueldvb/local

Reference to Thomas et al ADASS XXIII paper
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
Add new author: Paul Hartogh