Copy v1.6 docs to v1.7.
Use relative internal links.
Update "What's New" page header and link to v1.6.
Update the current version to v1.7.
Clean up some extraneous markup.
Discourage multiple top-level sources.
Describe the source selection feature.
Update "What's New in v1.7".
Clarify the backwards compatibility note.
Gems from github and rubyforge have been synced.
Post about the CVE and 1.7 release
remove superfluous signature on blog post
Fix a typo: rubyforge was a .org, not a .com.