Make follow work for tiddlers with space in titles
Make follow work for tiddlers with space in titles

fix #907

Using string concatenation here to avoid % confusion.

The essentially problem is that in the search query an argument
containing spaces must be quoted, or the parser will see it as
two different arguments.

TiddlySpace/tiddlyspace,TiddlySpace/tiddlyspace,TiddlySpace/tiddlyspace