Docs: Added a link to positionStatus() from the addStatus() page.

git-svn-id: svn://svn.code.sf.net/p/opensludge/code@636 27a91dd4-ec73-4ff0-838b-64dfa05f697e
Docs: Added a link from the chapter on functions to the spawnSub() function.

git-svn-id: svn://svn.code.sf.net/p/opensludge/code@641 27a91dd4-ec73-4ff0-838b-64dfa05f697e