Resolved issue preventing data from displaying

Code was initially returning the error Cross-Origin Request Blocked. Replaced reference to localhost in index.html file with 127.0.0.1, as unix browsers were not recognizing localhost as being the same thing as the computer's IP address. Data now displays correctly.
Updated solution to support alternate URLs

Replaced hard-coded 127.0.0.1 with location.origin, so that it would be possible to use either localhost or 127.0.0.1 to access the app.
Made HOST a config option

Externalized configuration of host string
Made HOST a config option

Externalized configuration of host string- no longer necessary to modify runserver.py file in order to set host='0.0.0.0'
Cleaned up definition of samplesURI

Now only a single line, removed unnecessary variables
Removed unnecessary imports

Decluttered code, removed imports from previous tests that were no longer required
Removed unnecessary functions

Cleaned up code, removed the loadconfigs function as it was unnecessary, commented out HOST line.
Merge branch 'bug4241_Display_Data'
Merging in solution to the bug of data not displaying on certain browsers (bug 4241)
Merge branch 'bug4266_host_config'
Update Makefile to also delete test.db.
Add initial implementation of a "Run" and update loader to create "Runs" when loading samples.
View controllers (REST services), Web page, and tests have yet to be updated.
Initial Run View implementation.
Add default respresentations
Add a default representation to the run and sample entities.
Update tests & views to support new Run entity
Update documentation to include run-based examples
Add unit test for cascading delete of Run
Externalize config to file
Refactor index.html to view model code
Update loader to work after Run introduction
Add support for filter on int