Fix make compilation errors parsing.

Make sure multiple jobs are disabled, or else VIM will get confused.
Add missing fold close marker.
Start with folds closed for grc/rc/rc.pager.
Update list of ignore patterns for DirDiff plugin.
Fix VCS command plugin detection of Git checkouts.

Make sure Git is prefered over Bazaar.
Force a sane default window size for GUI mode.
Add mapping for navigating to the current buffer directory.
Add settings for 'gitcommit' filetype.
Update terminal keys.
Minor cleanup in sh settings.
Add ZSH settings.
Update Python dictionary: add __init__ and self.
Add ZSH template.
vimpager: fix GUI mode.

Fix reading from stdin: use VIM foreground option to prevent forking in
the background.
vimpager: disable folds.
vimpager: improve '-F' mode.

- simplify code a little
- don't show tab bar, cursor cross, status line
- don't show trailing '~' after EOF
- disable 'list' option too
vimpager: add support for "-X" option.
vimpager: improve GUI mode.

Disable "-F" and "-X" options when GUI mode is enabled.
vimpager: simplify code a little.
vimpager: fix handling of "--".