if called like this:
    bb.sh edit -n posted.md
then editing title will rename posted.html to reflect new title.
Now it will rename posted.md, too

usage:
  bb.sh edit article.md
to edit previously posted article (for which markdown source was saved),
and repost it (under the same name or not)

Small fixes/2

ask "read" not to process backslash sequences when reading user-edited file
and leave them as is, instead

The bug was that if you decide, for some reason, insert links to tag pages
into text of your article, then after editing this article, the links were
gone. That happened because "tag links cleaning" was too agressive (it was
cleaning tags not only on tag line, but in the whole text)

Bug was that when confirming "[E]dit again" by providing an empty string,
the file wasn't deleted

we could as well do
if [ "$post_status" != "p" ] && [ "$post_status" != "P" ]
but this way is IMO cleaner

pass proper filename through parse_file to create_html_page

Bug was that when editing with "bb edit page.html" and changing title,
regenerated page.html had <h3><a class="ablack"> linking to newtitle.html
(non-existing file)

Small fixes/1

it holds the version of the blog which was here "today in the morning".

this is useful for those who, like me, first do "bb.sh rebuild" few times
before realizing "oh damn I screwed up everything".

Note: you are not expected to screw up on midnight.

Better editing

(to make synthax highlight work)

pass it through parse_file to create_html_page

Cut line 2

note that when requested to cut entry, it keeps stuff between text end and
entry end, so twitter button will still find its way into RSS feed

also fix indentation

Make tags more international

small fixes