The major effects of this commit are as follows:
1. We no longer skip any good bases (of course, this change alone breaks every single integration test).
2. The dinuc covariate returns a "no dinuc" value for the first base of a read (but not for the last base anymore, since there is a valid dinuc) or if the previous base is a bad base (e.g. 'N').
I've done a bunch of testing on real data and everything looks right; however, let's wait until the recalibrator guru gets back from vacation next week and can double-check everything before shipping this out in another early access release.
git-svn-id: file:///humgen/gsa-scr1/gsa-engineering/svn_contents/trunk@2443 348d0f76-0448-11de-a6fe-93d51630548a