Now (for real) readHeader() for BamDataFile no longer requires a BAM index file.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/aroma-dots@3568 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
o Now findHTSeq() returns versions in format '0.5.4-3' not '0.5.4p3',
  This makes it easier to test against different versions of HTSeq. 

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/aroma-dots@3569 edb9625f-4e0d-4859-8d74-9fd3b1da38cb