included suggestions by liz
newly rendered pdfs: pdfs/main_2013-06-26_17-35.pdf pdfs/diff_2013-06-26_17-35.pdf
newly rendered pdfs: pdfs/main_2013-06-26_17-36.pdf pdfs/diff_2013-06-26_17-36.pdf
included suggestions by liz
newly rendered pdfs: pdfs/main_2013-06-26_17-39.pdf pdfs/diff_2013-06-26_17-39.pdf