Update docker-py commit to the latest HEAD.

To fix issues with IPAM options.

Signed-off-by: David Calavera <david.calavera@gmail.com>

Dockerfile

@@ -177,7 +177,7 @@ RUN set -x \
 	&& rm -rf "$GOPATH"
 
 # Get the "docker-py" source so we can run their integration tests
-ENV DOCKER_PY_COMMIT 57512760c83fbe41302891aa51e34a86f4db74de
+ENV DOCKER_PY_COMMIT e2878cbcc3a7eef99917adc1be252800b0e41ece
 RUN git clone https://github.com/docker/docker-py.git /docker-py \
 	&& cd /docker-py \
 	&& git checkout -q $DOCKER_PY_COMMIT \

Dockerfile.armhf

@@ -148,7 +148,7 @@ RUN set -x \
 	&& rm -rf "$GOPATH"
 
 # Get the "docker-py" source so we can run their integration tests
-ENV DOCKER_PY_COMMIT 57512760c83fbe41302891aa51e34a86f4db74de
+ENV DOCKER_PY_COMMIT e2878cbcc3a7eef99917adc1be252800b0e41ece
 RUN git clone https://github.com/docker/docker-py.git /docker-py \
 	&& cd /docker-py \
 	&& git checkout -q $DOCKER_PY_COMMIT \

Dockerfile.gccgo

@@ -61,7 +61,7 @@ RUN set -x \
 ENV GOPATH /go:/go/src/github.com/docker/docker/vendor
 
 # Get the "docker-py" source so we can run their integration tests
-ENV DOCKER_PY_COMMIT 139850f3f3b17357bab5ba3edfb745fb14043764
+ENV DOCKER_PY_COMMIT e2878cbcc3a7eef99917adc1be252800b0e41ece
 RUN git clone https://github.com/docker/docker-py.git /docker-py \
 	&& cd /docker-py \
 	&& git checkout -q $DOCKER_PY_COMMIT

Dockerfile.ppc64le

@@ -126,7 +126,7 @@ RUN set -x \
 	&& rm -rf "$GOPATH"
 
 # Get the "docker-py" source so we can run their integration tests
-ENV DOCKER_PY_COMMIT 57512760c83fbe41302891aa51e34a86f4db74de
+ENV DOCKER_PY_COMMIT e2878cbcc3a7eef99917adc1be252800b0e41ece
 RUN git clone https://github.com/docker/docker-py.git /docker-py \
 	&& cd /docker-py \
 	&& git checkout -q $DOCKER_PY_COMMIT \

Dockerfile.s390x

@@ -126,7 +126,7 @@ RUN set -x \
 	&& rm -rf "$GOPATH"
 
 # Get the "docker-py" source so we can run their integration tests
-ENV DOCKER_PY_COMMIT 57512760c83fbe41302891aa51e34a86f4db74de
+ENV DOCKER_PY_COMMIT e2878cbcc3a7eef99917adc1be252800b0e41ece
 RUN git clone https://github.com/docker/docker-py.git /docker-py \
 	&& cd /docker-py \
 	&& git checkout -q $DOCKER_PY_COMMIT \