[Impact Function] Greener code.
Merge remote-tracking branch 'origin/develop' into fix_wizard
[Greener code] impact function dialog.
Merge remote-tracking branch 'origin/develop' into fix_wizard
For fixing inasafe-doc.
[Green Code] Coding standards and docstring.
[Green Code] Code standard and fixing for api-doc generator.
Pep8.
[Green Code] Remove unused code.
Tim's review.
Merge pull request #1076 from ismailsunni/green_code

Green code