Updated change log and comment

Author: kmvanbrunt

CHANGELOG.md

@@ -28,6 +28,8 @@
       input from previous invocations of `cmd2` based apps now shows in the `history` command.
     * Text scripts now run immediately instead of adding their commands to `cmdqueue`. This allows easy capture of
       the entire script's output.
+    * Added member to CommandResult called stop which is the return value of onecmd_plus_hooks after it runs the given
+    command line. 
 * Breaking changes
     * Replaced `unquote_redirection_tokens()` with `unquote_specific_tokens()`. This was to support the fix
       that allows terminators in alias and macro values.
@@ -44,7 +46,8 @@
     * HistoryItem class is no longer a subclass of `str`. If you are directly accessing the `.history` attribute
       of a `cmd2` based app, you will need to update your code to use `.history.get(1).statement.raw` instead.
     * Removed internally used `eos` command that was used to keep track of when a text script's commands ended
-    * Removed cmd2 member called _STOP_AND_EXIT since it was just a boolean value that should always be True 
+    * Removed cmd2 member called _STOP_AND_EXIT since it was just a boolean value that should always be True
+    * Removed cmd2 member called _should_quit since PyscriptBridge now handles this logic
 * **Python 3.4 EOL notice**
     * Python 3.4 reached its [end of life](https://www.python.org/dev/peps/pep-0429/) on March 18, 2019
     * This is the last release of `cmd2` which will support Python 3.4

cmd2/pyscript_bridge.py

@@ -24,7 +24,7 @@ class CommandResult(namedtuple_with_defaults('CommandResult', ['stdout', 'stderr
     ----------------------
     stdout: str - output captured from stdout while this command is executing
     stderr: str - output captured from stderr while this command is executing. None if no error captured.
-    stop: bool - return value of the command's corresponding do_* function
+    stop: bool - return value of onecmd_plus_hooks after it runs the given command line.
     data - possible data populated by the command.
 
     Any combination of these fields can be used when developing a scripting API for a given command.