Idea: Make a public and private version of the wiki

[andjar]

The idea is simple:

1. Protect the main tiddlywiki file with. htaccess and hardcode the tw-receiver password into the tw
2. When saving, tw-receiver overwrite the main file as usual and create the backup
3. But tw-receiver also creates a public file that is accessible to all. Before the output is written to the file, tw-receiver strips away all the tiddlers in the html code that are tagged with "Private"
4. If we are really advanced, all instances of the titles of private tiddlers are replaced by %%% or something in the public file (links, tags, freelinks, field values... )