[zsh] Update shell init; use ZSH autoloaded functions instead of a bunch of files

zsh/func/init_env

@@ -0,0 +1,21 @@
+#!/usr/bin/env zsh
+# vim:ft=zsh:
+# Eryn Wells <eryn@erynwells.me>
+
+function init_env
+{
+    shell-log 'Initializing basic environment'
+
+    export PAGER="less"
+    export MANPAGER=$PAGER
+    export EDITOR="vim"
+    export VISUAL=$EDITOR
+    export LESSHISTFILE="-"
+    export GREP_OPTIONS="--color=auto"
+    export GREP_COLOR="1;32"
+
+    # Make sure gpg2 knows what to do with the curses-based smartcard PIN prompt.
+    export GPG_TTY=`tty`
+}
+
+init_env "$@"