- Depend on Tika
- WIP stub TIKA calls.
AIDA-4 #comment Use Tika in BaseIndexing
- Reuse IndexWriter created in IndexWriterUtils instead of creating a fresh one each time.
- finalize closes IndexWriter.
- close IndexWriter at end of indexDocs(…).
- RemoteIndexer closes IndexWriter.
- Update paremt pom to use java 1.7
AIDA-4 #comment problem with closing IndexWriter; use java 1.7 try-with-resources in attempt to fix it.
Merge branch 'master' into aida-4_indexerUnsupportedFiletypes

Conflicts:
	Search/Indexer/pom.xml
- Set surefire working directory.
- Export INDEXDIR to surefire.
Merge branch 'master' into aida-4_indexerUnsupportedFiletypes

Conflicts:
	Search/Indexer/pom.xml
	Search/Indexer/src/main/java/indexer/Indexer.java
AIDA-4 #comment Resolve incompatible versions of dependency org.apache.poi: remove MswordHandler and its dependency on org.textmining.
- fix assertEquals: swap expected with actual.
- Use IndexWriterUtil to retrieve an updated count of documents.
- Describe test assertions.
Open IndexWriter in CREATE_OR_APPEND mode independent of settings in config file.
AIDA-4 commit and close IndexWriter after each write; copy indexed document to cache; refactor visitFile-method into class VisitDocument; and count added and failed files.
- remove suppurious println.
AIDA-4 close IndexWriter after all documents have been added.
AIDA-8 ignore tests expecting medline results; migrate tests to JUnit 4.