This merge brings the WSPR feature development into the main line
ready for release in a future v1.6 release.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5424 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
Note to developers: Not sure about the makefiles...
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3835 ab8295b8-cf94-4d9e-aec4-7959e3be5d79