Fix Python files to comply with PEP8 1.5.0
Merge pull request #87 from sbesson/rebased/dev_4_4/pep8_150

Fix Python files to comply with PEP8 1.5.0 (rebased onto dev_4_4)
Replace artifacts by components in the downloads page
Add double anchor for the components section
Rename build components as downloads components
Fix typo
Merge pull request #90 from sbesson/rebased/dev_4_4/artifacts2components

Replace artifacts by components in the downloads page (rebased onto dev_4_4)