Better way to handle Debian COdename

src/lib/ee_lib_variables.sh

@@ -32,7 +32,7 @@ elif [ "$EE_LINUX_DISTRO" == "Debian" ]; then
 	# Specify nginx package
 	readonly EE_NGINX_PACKAGE=nginx-full
 	# Detect Debian version
-	readonly EE_DEBIAN_VERSION=$(lsb_release -r | awk '{print($2)}' | cut -d'.' -f1)
+	readonly EE_DEBIAN_VERSION=$(lsb_release -sc)
 fi
 
 # Find php user-name

src/modules/stack/install/ee_mod_repo_php.sh

@@ -11,7 +11,7 @@ function ee_mod_repo_php()
 		|| ee_lib_error "Unable to add ondrej php5 launchpad repository, exit status = " $?
 
 	# Debian 6
-	elif [ $EE_DEBIAN_VERSION -eq 6 ]; then
+	elif [ "$EE_DEBIAN_VERSION" == "squeeze" ]; then
 
 		ee_lib_echo "Adding Dotdeb PHP5.4 repository, please wait..."
 		echo "deb http://packages.dotdeb.org $(lsb_release -sc)-php54 all" > /etc/apt/sources.list.d/dotdeb-$(lsb_release -sc)-php54.list \
@@ -21,7 +21,7 @@ function ee_mod_repo_php()
 		ee_lib_dotdeb
 
 	# Debian 7
-	elif [ $EE_DEBIAN_VERSION -eq 7 ]; then
+	elif [ "$EE_DEBIAN_VERSION" == "wheezy" ]; then
 
 		ee_lib_echo "Adding Dotdeb PHP5.5 repository, please wait..."
 		echo "deb http://packages.dotdeb.org $(lsb_release -sc)-php55 all" > /etc/apt/sources.list.d/dotdeb-$(lsb_release -sc)-php55.list \