Added support for django 1.4

bin/detect

 #!/usr/bin/env bash
 
-# This script serves as the 
-# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python) 
-# detector. 
-# 
-# A [buildpack](http://devcenter.heroku.com/articles/buildpacks) is an 
+# This script serves as the
+# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python)
+# detector.
+#
+# A [buildpack](http://devcenter.heroku.com/articles/buildpacks) is an
 # adapter between a Python application and Heroku's runtime.
 
 # ## Usage
 # Compiling an app into a slug is simple:
-# 
+#
 #     $ bin/detect <build-dir> <cache-dir>
 
 BUILD_DIR=$1
@@ -25,9 +25,10 @@ if [ ! -f $BUILD_DIR/requirements.txt ]; then
   exit 0
 fi
 
-# `Python/Django` if `**/settings.py` is present and `django` exists in 
+# `Python/Django` if `**/settings.py` is present and `django` exists in
 # `requirements.txt`.
 #
 # Otherwise, `Python`.
+SETTINGS_FILE=$(find $BUILD_DIR/. -maxdepth 3 -type f -name 'settings.py' | head -1)
 
-ls $BUILD_DIR/**/settings.py &> /dev/null && (grep -Fiq "django" $BUILD_DIR/requirements.txt) && echo Python/Django || echo Python
\ No newline at end of file
+[ -n "$SETTINGS_FILE" ] && (grep -Fiq "django" $BUILD_DIR/requirements.txt) && echo Python/Django || echo Python
\ No newline at end of file

bin/steps/django

 #!/usr/bin/env bash
 
 # This script serves as the Django build step of the
-# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python) 
-# compiler. 
-# 
-# A [buildpack](http://devcenter.heroku.com/articles/buildpacks) is an 
+# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python)
+# compiler.
+#
+# A [buildpack](http://devcenter.heroku.com/articles/buildpacks) is an
 # adapter between a Python application and Heroku's runtime.
 #
 # This script is invoked by [`bin/compile`](/).
@@ -21,7 +21,7 @@ fi
 echo "-----> Injecting Django settings..."
 
 
-SETTINGS_FILE=$(find . -maxdepth 2 -type f -name 'settings.py' | head -1)
+SETTINGS_FILE=$(find . -maxdepth 3 -type f -name 'settings.py' | head -1)
 PROJECT=$(dirname $SETTINGS_FILE)
 
 echo "Injecting code into $SETTINGS_FILE to read from DATABASE_URL" | indent