Merge pull request #25 from epicstar/master

More done
improvements to  the script that retrieves MEDLINE records indicitive of drug ADEs. I am convinced now that we need to switch to using the MEDLINE RDB datbase to retrieve these records
Merge branch 'master' of https://github.com/OHDSI/KnowledgeBase
a diagram of the current PubMed MeSH ADE OA graph model
Minor bug fix and a change so that individual study type datasets can be loaded separately
removing large file that does not need to be in github
draft revisions for version 0.3 of the ohdsi KB RDB schema
added a todo re the schema
added a todo re the schema
Edited the semmed query to get position of predicate, subject, and object in SEMMED. Put instructions to use mysql-postgresql-converter
added a cp of ohdsitest3 so I don't change the original dump file
added a working postgres dump of the tables (only) with the TODOs done