LP#1729620 Cleanup, fix bugs

LP#1729620 Cleanup, fix bugs

  - Rename DB schema file to follow convention
    - Remove optional DB commands, and leave them in Release Notes (and
      possibly add to Official Docs)
  - Create DB upgrade script
    - Print optional DB commands using \qecho
  - Change variable "tcn" to "rec_id" everywhere
  - Move perl API registration to be immediately after related function
  - Remove unused parameter from sub oai_list_retrieve() in
    Application/OAI.pm, and from API calls in WWW/OAI.pm
  - Fix mislabeled parameter in API doc
  - Add missing end-comment tags in opensrf.xml.example
  - Add dependency to Ubuntu/Debian makefiles
  - Add missing init handler in apache/eg.conf.in
  - Fix reference to sysconfdir in apache/eg_startup.in
  - Undo extraneous change to .gitignore
  - Trim/rename release notes, since most of the install process is
    handled via Evergreen install instructions.

Signed-off-by: Remington Steed <rjs7@calvin.edu>
Signed-off-by: Jane Sandberg <sandbej@linnbenton.edu>
Signed-off-by: Galen Charlton <gmc@equinoxOLI.org>