Move some settings from profile to zshenv

.zshenv is run everytime a zsh instance is started, including subshells and the
like. Use this file, now, to set things like PATH and such that are used
frequently.

Add a setup symlink for .zshenv

zshenv

@@ -0,0 +1,25 @@
+# .zshenv
+# vim: ft=zsh
+# Eryn Wells <eryn@erynwells.me>
+
+
+PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/X11/bin
+[ -d /opt/local/bin ]   && PATH=$PATH:/opt/local/bin
+[ -d $HOME/.local/bin ] && PATH=$PATH:$HOME/.local/bin
+[ -d $HOME/bin ]        && PATH=$PATH:$HOME/bin
+
+PAGER="less"
+MANPAGER=$PAGER
+EDITOR="vim"
+VISUAL=$EDITOR
+LESSHISTFILE="-"
+GREP_OPTIONS="--color=auto"
+GREP_COLOR="1;32"
+
+export PATH \
+       PAGER MANPAGER \
+       EDITOR VISUAL \
+       LESSHISTFILE \
+       GREP_OPTIONS GREP_COLOR
+
+[ `uname -s` = "Linux" ] && export MAIL="/var/mail/$USER"