move light-peer-chain tests (#1436)

* move light-peer-chain tests

* bust ci cache and add version string and system architecture to cache key

Author: pipermerriam

.circleci/config.yml

@@ -23,7 +23,7 @@ common: &common
         when: on_fail
     - restore_cache:
         keys:
-          - cache-{{ .Environment.CIRCLE_JOB }}-{{ checksum "setup.py" }}-{{ checksum "tox.ini" }}
+          - cache-v1-{{ arch }}-{{ .Environment.CIRCLE_JOB }}-{{ checksum "setup.py" }}-{{ checksum "tox.ini" }}
     - run:
         name: install dependencies
         command: pip install --user tox
@@ -37,15 +37,15 @@ common: &common
           - ~/.cache/pip
           - ~/.local
           - ./eggs
-        key: cache-{{ .Environment.CIRCLE_JOB }}-{{ checksum "setup.py" }}-{{ checksum "tox.ini" }}
+        key: cache-v1-{{ arch }}-{{ .Environment.CIRCLE_JOB }}-{{ checksum "setup.py" }}-{{ checksum "tox.ini" }}
 
 geth_steps: &geth_steps
   working_directory: ~/repo
   steps:
     - checkout
     - restore_cache:
         keys:
-          - cache-{{ .Environment.CIRCLE_JOB }}-{{ checksum "setup.py" }}-{{ checksum "tox.ini" }}
+          - cache-v1-{{ arch }}-{{ .Environment.CIRCLE_JOB }}-{{ checksum "setup.py" }}-{{ checksum "tox.ini" }}
     - run:
         name: install dependencies
         command: pip install --user tox
@@ -79,7 +79,7 @@ geth_steps: &geth_steps
           - ./eggs
           - ~/.ethash
           - ~/.py-geth
-        key: cache-{{ .Environment.CIRCLE_JOB }}-{{ checksum "setup.py" }}-{{ checksum "tox.ini" }}
+        key: cache-v1-{{ arch }}-{{ .Environment.CIRCLE_JOB }}-{{ checksum "setup.py" }}-{{ checksum "tox.ini" }}
 
 jobs:
   py35-lint: