Fix python3 compat.

One-line docstring should not occupy 3 lines
Expected 1 blank line *before* class docstring
First line should end with '.'
Blank line missing between one-line summary and description
No blank lines allowed *after* method docstring
Use r""" if any backslashes in a docstring

Use CapWords convention for class names
Use new-style classes
Use lowercase with underscore for function and local variable names
(to be continued)

German translations updated.

Thk @dtiersch !!!

needed because of the changes in d3a36c58 and ab23f2c5

the system

Use 'idle' instead of 'iowait' since the latter is available only on
Linux.

Use format() instead of % method.

HTML output is no more.

Use the longest string as reference and alignment point.

German translation for 2.0 RC1

"new" i18n-gen.sh for 2.0