Created for Coding Contest 2013 (www.coding-contest.de)

Analyses dna sequences and can output additional information about the
structure of it.

 Features:
    Risk of sicken on Tyberius Syndrome
    Brown Eyes
    Amount of each Nucleobase
    First occurrence of 'ctag'
    Amount of Purines and Pyrimidines
    Possibility on sicken on Fromingens dischryoasia
    Complementary Sequence of DNA
    Show DNA Sequence
    Input new Sequence
    Succeeding Purines
    Succeeding Pyrimidines

The DNA can be typed in via textinput or you can read from a txt file.
All letters except 'a', 't', 'g', and 'c' are ignored and the importing of
very big files can take some seconds.