Merge branch 'dev/fix-pos2krtd-usage-usage' into release

Fixed the reporting of an out-of-date usage message

* dev/fix-pos2krtd-usage-usage:
  update release notes
  Fixed the use of an error message reporting incorrect usage

doc/rel_notes/0.3.1.txt

@@ -12,3 +12,8 @@ Fixes since v0.3.0
 Core Library
 
  * Added feet-meter conversions in camera and INS data update functions.
+
+Tools
+
+ * Fixed erronious reporting of an out-of-date usage message. Now reports
+   currect current usage.

tools/pos2krtd.cxx

@@ -288,14 +288,8 @@ static int maptk_main(int argc, char const* argv[])
   catch (bpo::unknown_option const& e)
   {
     std::cerr << e.what() << std::endl
-              << std::endl
-              << "Usage: " << argv[0] << " file.pos file.krtd" << std::endl
-              << "     : " << argv[0] << " pos_dir output_dir" << std::endl
-              << std::endl
-              << "If multiple POS files are to be converted into KRTD " << std::endl
-              << "files, it is recomended to use the directory arguments " << std::endl
-              << "in order for the application to create a unified local " << std::endl
-              << "coordinate system." << std::endl;
+              << std::endl;
+    usage(argc, argv, opt_desc, vm);
     return EXIT_FAILURE;
   }
   bpo::notify(vm);