.Xmodmap: make forward skip to next audio track
add lircrc
add mplayer directory
add screenrc

I don't use screen anymore, but I had this old config lying around so
I figured I might as well check it in, in case I need it again in the
future.
zshrc: add completion for ssh and scp
add xpdfrc and xzgvrc
ipython config update

- remove all boilerplate comments from config file
- enable autoreload module
- import reload on Python 3
- use standard Python prompt
- pass 'git' command to the shell
zshenv: allow scripts in either ~/p or ~/personal
zshrc: look for HOME_GITDIR in more places
add crawlrc
add hgrc
gitignore: huge update
zshrc: increase HISTSIZE and SAVEHIST by 10x
zshrc: make ^V display a "^" like vi does
gitignore: __pycache__, add .pyc to global
zshrc: replace incarg with improved version

My new version is more Do-What-I-Mean:
- If the cursor is on a number, increment that number.
- Otherwise, if there is a number anywhere to the right of the cursor,
  increment the leftmost such number.
- Otherwise, if there is a number anywhere to the left of the cursor,
  increment the rightmost such number.

The first two cases operate just like Vim.  The third is a feature so that if
your cursor is at the end of the line, you can increment the last number in
the line.

I have bound this to ^X^A / ^X^X to be more vim-like.