First set of converted pages

These files are converted from the *.en.html version using pandoc and
some minor semi-manual edits.  The news_YEAR files have all be folded
into one file (the automatic splitting stopped to work in 2006
anyway).
Create the two download pages and convert the swdb file.
Update the news to match current gnupg.org.
Add git.gnupg.org index page.
Converted the rest of download/
Basic conversion of the related_software/.
Change location of setup.inc and formatting changes.
Add gpa pages and icons.
Add gpgme page and named anchors to the download page.
Add pages for lib{assuan,ksba,gpg-error}, and pinentry.
Add empty robots.txt.
Converted the misc/ section.
Converted the documentation/ section.
Converted the Aegypten section.

For ease of future maintenace, we dropped the translations.
Add basic build stuff.
Add an index page.
Add TITLE keywords.
Add file copying and started work on a new CSS.
Update copying, fixup the CSS, and add a menu.
Remove trailing blank lines.