reorganizes into scripts and manual sections
adds pip install to readme for virtualenv
adds .gitignore and requirements.txt for virtualenv python script
adds python requests library dependency
adds python script
adds shell script
updates readme
updates python script
updates for git flavor of markdown
updates python section
fixes bolds
simplifies some headers and manual section
fixes i/o issue
updates gitignore
updates link to pmc oa web service
adds tmp/ to .gitignore
converts DOIs to PMCIDs, preps for article download and conversion
updates other pmc link in readme manual instructions
adds dependencies beautifulsoup4 and wget
nearly completes script main loop