Merge pull request #1 from AndreSchumacher/master

Small changes to abstract and main text, adding a book to bibtex file
A few minor tweaks on top of Andre's changes.
Fix spelling on my name.
Merge pull request #2 from hammer/master

Fix spelling on my name.
Revising abstract and introduction to focus more on technical goals of adam.
Adding in performance numbers from Mt. Sinai.
Added discussion about syntax vs. semantics.
Merged in Dave's suggestions. Increased size of plots.
Added SequenceDictionary section.

Also, added a new reference to a GATK forum web-page, which gives some documentation on the sequence dictionary and explains the GATK's reliance on a common dictionary across files for comparison (as well as showing bug reports and errors reported by users who didn't maintain this distinction in their files).
Merge pull request #3 from tdanford/tdanford/sequence-dictionaries

Added SequenceDictionary section.
Update adam-ismb-2013.tex
Merge pull request #4 from mlinderm/patch-1

Update adam-ismb-2013.tex
Modifying references as per Bioinformatics author instructions and common journal writing style