Add circle configuration

circle.yml

+dependencies:
+  override:
+    - pip install setuptools==0.6c11
+    - pip install distribute==0.6.49
+    - pip install pbr==0.9.0
+
+    - paver install_prereqs
+
+test:
+  override:
+    - ./scripts/circle.sh:
+        parallel: true

scripts/circle.sh

+#!/usr/bin/env sh
+
+case $CIRCLE_NODE_INDEX in
+    0) paver test_lib --extra_args="--with-flaky" --cov_args="-p" ;;
+
+    1) paver test_system -s cms --extra_args="--with-flaky --with-xunit" --cov_args="-p" ;;
+
+    2) paver test_system -s lms --extra_args="--with-flaky --with-xunit" --cov_args="-p" ;;
+esac
+
+RET=$?
+
+cp -r reports/. $CIRCLE_TEST_REPORTS
+
+exit $RET