Don't include insertion directly outside CDS in CDS.

src/Modules/Mutator.py:
- The newSplice() method no longer includes insertions in exons for the
  first and last sites in the given list of splice sites. The result is
  that this inclusion in exons does not apply to translation start/end
  and CDS start/end. This fixes issue #39.



git-svn-id: https://humgenprojects.lumc.nl/svn/mutalyzer/trunk@190 eb6bd6ab-9ccd-42b9-aceb-e2899b4a52f1