[Fix #362, Fix #384] Set Mac OS X 10.6 terminal window title
Remove unused GNU Screen window number format
Rewrite terminal auto-title
Simplify auto-titling
Prefix internal functions
Unsufix internal functions
[Fix #324] Add configurable terminal window and tab title formats
Remove utility aliases for Cygwin
Warn that Cygwin is not supported
[Fix #503] Prefix rails aliases with 'bundle exec'
Fix heading level for "zpreztorc"
Update copyright
Update external syntax-highlighting
Update external history-substring-search
Update external completions
Refactor Bundler aliases
Update copyright
Allow functions in a module to be symlinks

Add the '-' flag to the function glob which makes the other flag test
against the target of the symlink, and not the symlink itself.

When using rcm (https://github.com/thoughtbot/rcm), the function files
are symlinked by default, but the current glob excludes them by
targeting normal files (with the '.' flag).

Signed-off-by: Sorin Ionescu <sorin.ionescu@gmail.com>
[Fix #523] Ensure zprofile exists before sourcing it
Fix README.md: PATH was moved from .zshenv to .zprofile