Tidy up svn references in old meetings

[h-lame]

We used to host a SVN repo that had some uploaded presentations and code from talks. We have the SVN repo so could re-host, but maybe we need to source permission from the original authors? We should at least we rewrite the urls to go somewhere other than a dead svn repo.

[h-lame]

References:

• ./source/meetings/2006/august/index.html.md:
  [http://svn.lrug.org/lrug_sandbox/presentations/ruby_dsl_presentation_tiest_2006/Domain Specific Languages.pdf](http://svn.lrug.org/lrug_sandbox/presentations/ruby_dsl_presentation_tiest_2006/Domain Specific Languages.pdf) & http://svn.lrug.org/lrug_sandbox/presentations/ruby_dsl_presentation_tiest_2006/fsa-code/

• ./source/meetings/2006/august/index.html.md:
  http://svn.lrug.org/lrug_sandbox/presentations/working_with_your_designers/rails-other-side-of-tracks.pdf

• ./source/meetings/2006/july/index.html:
  http://svn.lrug.org/lrug_sandbox/presentations/austin_zeigler_july_2006/austin_zeigler_july_2006.pdf

• ./source/meetings/2006/july/index.html:
  http://svn.lrug.org/lrug_sandbox/presentations/sleeping_with_the_enemy/sleeping_with_the_enemy.pdf & http://svn.lrug.org/lrug_sandbox/presentations/sleeping_with_the_enemy/

• ./source/meetings/2006/may/index.html:
  http://svn.lrug.org/lrug_sandbox/presentations/ruby_testing_techniques/RubyTestingTechniques.pdf

• ./source/meetings/2006/october/index.html.md:
  http://svn.lrug.org/lrug_sandbox/presentations/ruby_dsl_presentation_tiest_2006/

  Note that this reference is obviously wrong as the link is to the dsl presentation from august, so maybe just delete this one?

[h-lame]

Actually, I think all these meetings are in draft, so maybe we could "un-draft" them if we do fix the svn links.