missing py-variable-name-face, lp:1215791, fixed
Make error-messages point at original source, not temp file. Fixed.

New boolean `py-highlight-error-source-p', default is nil
When py-execute-... commands raise an error, respective code in source-buffer will be highlighted.

New command `py-remove-overlays-at-point' 
Remove overlays as set when `py-highlight-error-source-p' is non-nil.
missing py-variable-name-face, lp:1215791, again

python.el fixes merged
`py-execute-region' error-messages fixed
`py-beginning-of-statement', `py-end-of-statement' in menu
`py-smart-operator-mode-p' default nil
Avoid error-messages from `py-smart-operator-check' if `py-smart-operator-mode-p' is nil
py-version updated
`py-postprocess-output-buffer' sit-for reduced
New error running buffer with C-c C-c, lp:1221310, fixed