Added ability to insert automatic "return" for dynamic element functions, and graph label dynamic element functions.

Feature "Dynamic Elements in Labels" has been refactored to provide the user an easier interface for access. Demo "Sample Size and Power" has been updated.

Added new feature: ability to add a label for an asymptote. Added new demo to GST: "Power and Alpha Demo".

Refactoring. Added ability to add dynamic element output to graph labels. Updated 2 demos for GST. "Falsified Clinic Data", and "Sample Size and Power".

Added automatic insertion of missing "return" statement into simple function strings. Added an option to turn this feature off.

Fixed bug. Specified values that are outside the allowed range now behave properly. Plot is redrawn after the value has been set to max (or min) value.

Fix. Now when user enters a value for a parameter greater than the max, it will be reset to the max. The ame for the min.

GST work in progress. Added point size. Added ability to redirect function output to element. Updated some example demos. Refactoring code.