(tempo-insert-template): Quoted transient-mark-mode

(tempo-insert-template): Quoted transient-mark-mode
Expansion around region now puts point at the first mark.

(tempo-region-start, tempo-region-stop): New variables
(tempo-insert-template, tempo-insert): Don't affect the
mark.  Check for Transient Mark mode

(tempo-find-match-string): Removed the stupid 1+ again

(tempo-use-tag-list): Set tempo-match-finder to completion-function.

(tempo-match-finder): Renamed variable from
tempo-default-match-finder.  Change the value too.
(tempo-collection, tempo-dirty-collection): New variables.
(tempo-user-elements): New variable.
(tempo-insert): New argument ON-REGION.
New elements 'l and 'r.  Use tempo-is-user-element.
(tempo-is-user-element): New function.
(tempo-invalidate-collection, tempo-build-collection): New functions.
(tempo-find-match-string): Reinserted bugfix for re-search-backward.
(tempo-complete-tag): Complete rewrite.

(tempo-insert): Added the 'o tag.