It turns out that you can use `:0r !foo` to avoid the blank line I was
deleting in BPB_DiaryFragement() and BPB_DatestampHTML().

Also remove a commented-out YouCompleteMe install.

Via:

  - https://gerrit.wikimedia.org/r/Documentation/cmd-index.html
  - https://lists.wikimedia.org/pipermail/wikitech-l/2019-March/091779.html

- stop erroring on utf-8 output
  - use the right syntax for redirecting stderr
  - don't display sections with no output
  - indicate vimwiki path

Also removes xmodmap from xmonad.start.

addscript: add a new script in ~/bin.

f-to-c: convert degrees Fahrenheit to degrees C.  A wrapper around
units(1), because I'm always forgetting the syntax for this.

put-mv-notes: move the currently yanked file to ~/notes.

Use fzf to select files from changed files (including untracked) in a
working tree.  Thanks to @tomasino@mastodon.sdf.org for the git subcommand
idea here - these are scripts rather than aliases, but the interface
is pretty well the same:

https://mastodon.social/@brennen/101440377610036479

Serve the current directory.

Shells out twice in a silly way.

Adds a --file option that will either:

  - pull the date from a vimwiki filename
  - pull the date from a p1k3 entry path
  - pull the day from file's mtime

Aggregates some stuff by date range.

This is Tyler's bash version, just because it doesn't have much in the
way of dependencies.

firefox-wrapper: start firefox (a workaround for some $PATH nonsense).

edit-clipboard: open current contents of clipboard in $EDITOR, write them
back to clipboard.  relies on xclip.

mcd(): a function to make a path and cd into it.

This should be slightly more correct and doesn't result in an extra blank
line.

See: https://p1k3.com/2016/7/11/ - "extracting all (?) of the filenames
from packages available in debian"