Double-clicks on 73 messages fixed. Fixed issue with incorrect decode
being selected by double-click. Refined auto-sequencing sign off
handling, any 73 or rr73 free text near Rx or Tx frequency taken as a
73 from QSO partner but if a standard message then must be from QSO
partner.
Moved functionality from MainWindow to DecodedText class.
More efficient picking of messages from decoded text windows by
extracting the text block directly.
Tighten up use of RR73 and skipping Tx1, these are now disabled for
relevant compound calls where they would break the QSO exchange.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8056 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
Routine packmsg now tries the shortlist (Type 1 prefix or suffix) first.
Then it tries to to make a valid message using a Type 2 prefix or suffix.
If both fail, it packs the first 13 characters as a free-text message.
The GUI now generates the most useful messages with compound callsigns
of all valid types.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4533 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
