Added documentation for Worm Segmentation, Ventral Side Annotation and Head Detection, Absolute Coordinates, and Feature Overview to Schafer Lab Feature Descriptions.md for issue #94.
Merge pull request #95 from pm1988/master

Added Requested Documents for Issue #94
Rename Schafer Lab Feature Descriptions.md to ReadMe.md

ReadMe has higher visibility
Added citation to worm segmentation.md
Update Absolute Coordinates.md
Update Feature File Overview.md
Update Feature Overview.md
Update Ventral Side Annotation and Head Detection.md
Italicized *C. elegans*
Major commit

Added database schema documentation
Moved eigenworm code from NormalizedWorm into the features directory
Added a pre_features stub file for addition to later.
Fixed a bunch of bugs related to handling missing events for histogram creation
Added file test_setup.py - it is not finished
Revised the database schema

Simplified the relationship between video and wireframe

Added a User table separate from the Experimenter table.  Users are what
are used as credentials to log into the service.
Changed sql from Microsoft (T-SQL) to MySQL
Merge remote-tracking branch 'remotes/upstream/master'

Conflicts:
	movement_validation/features/worm_features.py