Cleaned bash it up

lib/aliases.bash

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 # List directory contents
 alias sl=ls
 alias ls='ls -G'        # Compact view, show colors

lib/appearance.bash

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 # colored grep
 export GREP_OPTIONS='--color=auto'
 export GREP_COLOR='1;33'
@@ -5,8 +7,5 @@ export GREP_COLOR='1;33'
 # colored ls
 export LSCOLORS='Gxfxcxdxdxegedabagacad'
 
-# Apply theming defaults
-PS1="%n@%m:%~%# "
-
 # Load the theme
 source "$BASH/themes/$BASH_THEME/$BASH_THEME.bash"

lib/grep.bash

@@ -1,2 +0,0 @@
-export GREP_OPTIONS='--color=auto'
-export GREP_COLOR='1;32'

lib/history.bash

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 # append to bash_history if Terminal.app quits
 shopt -s histappend