Moved content-path parameter from cav-db.scm into cav-db-sqlite.scm,
and moved its init code from app-init to enable-sqlite.
Added get-last-id query function.
Removed 'bogus-vars'.
Modified %connect and %disconnect to accommodate multiple calls w/o
error.
1) Added node-id generation code; 2) Added calls to db:connect &
db:disconnect.
Simple-pager is now working.