Bump for version 1.12.3

Signed-off-by: Nathan LeClaire <nathan.leclaire@gmail.com>

Dockerfile.osx

@@ -26,12 +26,12 @@ RUN curl -fsSL -o /vbox.dmg http://download.virtualbox.org/virtualbox/$VBOX_VERS
 
 # Download the Docker parts
 
-ENV INSTALLER_VERSION 1.12.3-rc1
-ENV DOCKER_VERSION 1.12.3-rc1
+ENV INSTALLER_VERSION 1.12.3
+ENV DOCKER_VERSION 1.12.3
 
 # Change this to 'test.docker.com' for RCs and 'get.docker.com' for official
 # releases.
-ENV DOCKER_ENDPOINT test.docker.com
+ENV DOCKER_ENDPOINT get.docker.com
 
 # Why '--strip-components 3'?  The client binary is in usr/local/bin/docker in
 # the tar archive.  If we extract directly, it will create a usr/local/bin

Dockerfile.windows

@@ -17,8 +17,8 @@ RUN cd innosetup && \
     wine "./innounp.exe" -e "is-unicode.exe"
 
 # installer components
-ENV INSTALLER_VERSION 1.12.3-rc1
-ENV DOCKER_VERSION 1.12.3-rc1
+ENV INSTALLER_VERSION 1.12.3
+ENV DOCKER_VERSION 1.12.3
 ENV DOCKER_MACHINE_VERSION 0.8.2
 ENV DOCKER_COMPOSE_VERSION 1.8.1
 ENV BOOT2DOCKER_ISO_VERSION $DOCKER_VERSION
@@ -34,7 +34,7 @@ WORKDIR /bundle
 
 # Change this to 'test.docker.com' for RCs and 'get.docker.com' for official
 # releases.
-ENV DOCKER_ENDPOINT test.docker.com
+ENV DOCKER_ENDPOINT get.docker.com
 
 RUN curl -fsSL -o dockerbins.zip "https://${DOCKER_ENDPOINT}/builds/Windows/x86_64/docker-${DOCKER_VERSION}.zip" && \
     unzip dockerbins.zip && \