ref(Makefile): refactor `make dev-release`

This allows us to run `make -C controller config` when we know that
the image is pushed onto the registry and we just need to tell the
cluster to use this image.
fix(registry): make deis-cache mandatory

Sometimes the redis cache would take longer than the registry to come
up. In that case, confd would then set the host and port to be "",
in which case the registry would parse the YAML value as `None`. This
change makes the cache mandatory in order for the registry to come up.
fix(registry): use YAML's nil type
fix(controller/tests): add fleet socket to controller tests
ref(logger): just use go. remove bash script.
fix(logger): the test is expecting the message "deis-logger running".
ref(logger): replace deis/go.
ref(project): replace deis/go with golang:1.3.
docs(README): add build status badge for CI test-master job
feat(client): add loading info msg to run command
Merge pull request #2117 from aledbf/replace_deis_go_with_golang

ref(project): replace deis/go with golang:1.3.
Merge pull request #2113 from aledbf/logger_to_just_go_refactoring

ref(logger): just use go. remove bash script.
Merge pull request #2090 from bacongobbler/mandatory_cache

fix(registry): make deis-cache mandatory
Merge pull request #2047 from bacongobbler/push-config

ref(Makefile): refactor `make dev-release`
doc(deisctl): clarify godep dependency
ref(user-data): switch get_image to use /deis/platform/version
Merge pull request #2099 from carmstrong/controller_test_fleet_socket

fix(controller/tests): add fleet socket to controller tests
Merge pull request #2129 from gabrtv/platform-version

ref(user-data): switch get_image to use /deis/platform/version
Merge pull request #2084 from tobyhede/master

feat(client): add loading info msg to run command
Merge pull request #2121 from mboersma/build-status-badge

docs(README): add build status badge for CI test-master job