First creation of EuropePMC context and extracted sections#2

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petermr wants to merge 2 commits intoakeshavan:masterfrom petermr:master

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Commits on May 11, 2018

downloaded 297 fulltext.xml files from EPMC; created methods.xsl and methods.sh; ran transform to extract methods sections as sect.xml (bad name)
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ignored fulltext because of size
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