2. Fix jt9 so that decoding starts at fStart (which now may be non-zero).
3. Improved or new Tool Tips for some GUI controls.
4. Updates to User's Guide.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3540 ab8295b8-cf94-4d9e-aec4-7959e3be5d79