Remove restrictions on directory for scm-breeze

Previously the script had to be installed to ~/.scm_breeze. Now it can
live anywhere!

install.sh

@@ -1,6 +1,9 @@
 #!/bin/bash
+
+#locate the dir where this script is stored
+scmbDir="$(dirname "$0")"
 # This loads SCM Breeze into the shell session.
-exec_string='[[ -s "$HOME/.scm_breeze/scm_breeze.sh" ]] && . "$HOME/.scm_breeze/scm_breeze.sh"'
+exec_string='[[ -s "$scmbDir/scm_breeze.sh" ]] && . "$scmbDir/scm_breeze.sh"'
 
 # Add line to bashrc and zshrc if not already present.
 for rc in bashrc zshrc; do
@@ -11,7 +14,7 @@ for rc in bashrc zshrc; do
 done
 
 # Load SCM Breeze update scripts
-. "$HOME/.scm_breeze/lib/scm_breeze.sh"
+. "$scmbDir/lib/scm_breeze.sh"
 # Create '~/.*.scmbrc' files from example files
 _create_or_patch_scmbrc
 

lib/scm_breeze.sh

@@ -30,7 +30,7 @@ _create_or_patch_scmbrc() {
   for scm in git; do
     # Create file from example if it doesn't already exist
     if ! [ -e "$HOME/.$scm.scmbrc" ]; then
-      cp "$HOME/.scm_breeze/$scm.scmbrc.example" "$HOME/.$scm.scmbrc"
+      cp "$scmbDir/$scm.scmbrc.example" "$HOME/.$scm.scmbrc"
       echo "== '~/.$scm.scmbrc' has been created. Please edit this file to change SCM Breeze settings for '$scm'."
     # If file exists, attempt to update it with any new settings
     elif [ -n "$1" ]; then