Updated configuration and docs for MYSQL_PASSWORD

Updated MYSQL_PASSWORD to DATABASE_PASSWORD in sample
configuration and existing docs

Change-Id: Iafb295a0b7707e08a81e6528620db8543d40f7ae
diff --git a/doc/source/guides/multinode-lab.rst b/doc/source/guides/multinode-lab.rst
index 1530a84..5660bc5 100644
--- a/doc/source/guides/multinode-lab.rst
+++ b/doc/source/guides/multinode-lab.rst
@@ -128,7 +128,7 @@
     MULTI_HOST=1
     LOGFILE=/opt/stack/logs/stack.sh.log
     ADMIN_PASSWORD=labstack
-    MYSQL_PASSWORD=supersecret
+    DATABASE_PASSWORD=supersecret
     RABBIT_PASSWORD=supersecrete
     SERVICE_PASSWORD=supersecrete
     SERVICE_TOKEN=xyzpdqlazydog
@@ -169,7 +169,7 @@
     MULTI_HOST=1
     LOGFILE=/opt/stack/logs/stack.sh.log
     ADMIN_PASSWORD=labstack
-    MYSQL_PASSWORD=supersecret
+    DATABASE_PASSWORD=supersecret
     RABBIT_PASSWORD=supersecrete
     SERVICE_PASSWORD=supersecrete
     SERVICE_TOKEN=xyzpdqlazydog
diff --git a/doc/source/guides/neutron.rst b/doc/source/guides/neutron.rst
index 4248445..9d4f54a 100644
--- a/doc/source/guides/neutron.rst
+++ b/doc/source/guides/neutron.rst
@@ -52,7 +52,7 @@
         RABBIT_HOST=172.18.161.6
         GLANCE_HOSTPORT=172.18.161.6:9292
         ADMIN_PASSWORD=secrete
-        MYSQL_PASSWORD=secrete
+        DATABASE_PASSWORD=secrete
         RABBIT_PASSWORD=secrete
         SERVICE_PASSWORD=secrete
         SERVICE_TOKEN=secrete
diff --git a/doc/source/guides/single-machine.rst b/doc/source/guides/single-machine.rst
index 236ece9..a01c368 100644
--- a/doc/source/guides/single-machine.rst
+++ b/doc/source/guides/single-machine.rst
@@ -105,7 +105,7 @@
     FIXED_NETWORK_SIZE=256
     FLAT_INTERFACE=eth0
     ADMIN_PASSWORD=supersecret
-    MYSQL_PASSWORD=iheartdatabases
+    DATABASE_PASSWORD=iheartdatabases
     RABBIT_PASSWORD=flopsymopsy
     SERVICE_PASSWORD=iheartksl
     SERVICE_TOKEN=xyzpdqlazydog
diff --git a/doc/source/guides/single-vm.rst b/doc/source/guides/single-vm.rst
index 515cd50..53c3fa9 100644
--- a/doc/source/guides/single-vm.rst
+++ b/doc/source/guides/single-vm.rst
@@ -64,7 +64,7 @@
             cd devstack
             echo '[[local|localrc]]' > local.conf
             echo ADMIN_PASSWORD=password >> local.conf
-            echo MYSQL_PASSWORD=password >> local.conf
+            echo DATABASE_PASSWORD=password >> local.conf
             echo RABBIT_PASSWORD=password >> local.conf
             echo SERVICE_PASSWORD=password >> local.conf
             echo SERVICE_TOKEN=tokentoken >> local.conf