jPicEdt Code

Improved JPIC-XML parser.

Added picture for code documentation in AbstractCurve

Improved code documentation + class refactoring.

Improved source code documentation. Moved documentation pictures to doc-files directory.

Improved source code documentation. Beautified import statements.

Moved PNG files used by source code Javadoc documentation.

Added package documentation.

Improved source code documentation.

Improve code documentation. Got rid of irrelevant RunTimeException's that
where here for debugging purpose (use new keyword assert instead).

Improved code documentation.