Added description of changes to CHANGELOG.

Author: anselor

CHANGELOG.md

@@ -4,6 +4,16 @@
     * Fixed bug where **alias** command was dropping quotes around arguments
     * Fixed bug where running help on argparse commands didn't work if they didn't support -h
     * Fixed transcript testing bug where last command in transcript has no expected output
+    * Fixed bugs with how AutoCompleter and ArgparseFunctor handle argparse
+    arguments with nargs=argparse.REMAINDER. Tab completion now correctly
+    matches how argparse will parse the values. Command strings generated by
+    ArgparseFunctor should now be compliant with how argparse expects
+    REMAINDER arguments to be ordered.
+    * Fixed bugs with how AutoCompleter handles flag prefixes. It is no
+    longer hard-coded to use '-' and will check againstn the prefix_chars in
+    the argparse object. Also, single-character tokens that happen to be a
+    prefix char are not treated as flags by argparse and AutoCompleter now
+    matches that behavior.
 * Enhancements
     * Added ``exit_code`` attribute of ``cmd2.Cmd`` class
         * Enables applications to return a non-zero exit code when exiting from ``cmdloop``