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)
Add javadocs zip to the Bio-Formats downloads page

- Create API documentation section similar to OMERO downloads page

Conflicts:
	bfgen.py
Fix typo
Change legacy to previous versions

Conflicts:
	flimfit_downloads.html
	omero_downloads.html