`py-beginning-of-block-or-clause' fixed

`py-beginning-of-block' again

`py-beginning-of-block' lc .i.e. left-corner forms fixed

`py-beginning-of-form-intern' reconsidered
new intermediare `py-beginning-of-prepare'
`py-partial-expression' reconsidered

make `py-partial-expression' grasp keyword-arguments
menu `py-beginning/end-of-clause' added
`py-mark-base' fixed

make sure, the mark is set a right place

menu "Copy" commands made moved at first level 

`py-end-of-partial-expression'
use `py-partial-expression-backward-chars'
`py-beginning-of-statement', `py-end-of-statement' fixed


`py-guess-indent-offset' re-designed
New optional arg DIRECTION
calls `py-guess-indent-backward', `py-guess-indent-forward'
`py-beginning-of-statement', `py-end-of-statement' fixed


`py-guess-indent-offset' re-designed
New optional arg DIRECTION
calls `py-guess-indent-backward', `py-guess-indent-forward'

`py-postprocess-output-buffer', `py-jump-to-exception' fixed
incorrect indentation with tertiary, lp:1189604

fixed
`py-postprocess-output-buffer' again