Changes with Python Mode 3.77

Here are a list of changes since 3.58. Many thanks to Michael Ernst for his contributions, which dominate the changes listed below!

• New command py-execute-import-or-reload which imports or reloads the current file as a module into the *Python* interpreter shell. This is useful so as not to clutter the interpreter's main namespace. Bound to C-c C-m. The new variable py-ask-about-save is used to determine how any modified buffers are saved.

• New command py-execute-def-or-class sends the current function or class definition to the interpreter shell. Bound to C-M-x.

• New command py-execute-string which sends an arbitrary string to the interpreter shell. Bound to C-c C-s.

• When used programmatically, the first optional argument to py-beginning-of-def-or-class and py-end-of-def-or-class can take the value `either' which says to find either a class or def construct.

• The variable py-scroll-process-buffer has been removed since the mechanism for handling output, and for queuing temp files for execution, has been rewritten and updated for the latest Emacsen. Use the standard comint variable comint-scroll-to-bottom-on-output instead.

• The usual crop of bug fixes, including fixes for Imenu. More docstrings and comment fixes. too.