Remove references to line numbers in tutorial text

Removed line numbers in the text because it was difficult to keep these
up-to-date.  Changed some wording and moved sample scripts before (rather
than after) the descriptive text in order to keep it easy to understand.
Merge remote-tracking branch 'origin/topic/dnthayer/ticket1206'

* origin/topic/dnthayer/ticket1206:
  Remove references to line numbers in tutorial text

BIT-1206 #merged