Make sure suggestion tiddlers are retrieved as text.

jQuery is awkward when it comes to content negotiation.
Merge branch 'master' of github.com:TiddlySpace/tiddlyspace
Revert "update search test quantities"

This reverts commit 168f6d0d233d9df8132edd34047a8487e370aada.

This was the result of some bad branch management.
Merge branch 'master' into logging-refactor