Language tweaks for http/compaction configuration reference.
Tweak section subtitles on the index page.
For consistency, always look at acinclude.m4.in for versions.
The Gentoo section doesn't provide any useful information, delete it.
Rename Data Replication section to just Replication.
Reorganize index a bit, add more topics.
Update build system to deal with disappearance of gentoo section.
Don't start or stop if COUCHDB_NO_START is set

The JavaScript test runner should not try to start or stop
the CouchDB instance with ./utils/run when COUCHDB_NO_START
is set.
Make JS test runner work with single file

Commit 9dfddaa7bf30d30c8fbbc4e1cc2bff4dc35dadac broke running
the JavaScript test runner with a single file. It just did
not run the test.