Remove and update some URLs

[Andre601]

This PR updates some of the "Other Versions" mentioned on the site, since quite a few are either gone or switched places.

Namely, the following changes have been made:

• Changed
  • http://expressionengine.com/forums/viewthread/145773 to https://expressionengine.com/forums/topic/145773 The old URL was no longer working.
  • http://soderlind.no/archives/2010/11/17/lorem-shortcode/ to https://soderlind.no/lorem-shortcode/ Site was updated and pages got moved.
  • Commented out http://ipsumimage.appspot.com/ While the site is still responding does it look as if the generator/service itself stopped working? So I didn't remove it completely in case it may work again.
• Removed
  • http://tumble.dasmith.co.uk/post/519622101/textmate-snippet-for-inserting-dummy-images Site does not respond.
  • http://github.com/kennethreitz/DummyImage.tmBundle Repository was deleted.
  • http://modxcms.com/extras/package/754 Returns 404
  • http://typo3.org/extensions/repository/view/fr_dummy_image/current/ Returns 404

I also went ahead and updated all http:// to https:// because... it's almost 2022 now and no site on earth should use http://... ever.