1. Derivative now allows input for dicentric derivative chromosomes.
1. Updated derivative examples that include the input for single or multiple centric information.
1. Rearranged file. 2. Updated named definitions -- no longer inconsistent.
1. Removed whitespace. 2. Removed uncessary documentation. 3. Commented out inconsistent entites for now.
1. Rearranged file. 2. Updated named definition tests -- no longer inconsistent.