add retries to salt bootstrap download
Run all go tests in parallel (6x speedup)

Currently hack/test-go.sh runs in serial in independent executions of
go test.  By running all tests at once, we get parallel execution.
However, we cannot use -coverprofile with this mode, which seems worthwhile.

On a 4-core mac, runs tests in 15s that ran in 80s before. Tested on F20 and
OSX Mavericks.
Merge pull request #767 from smarterclayton/parallelize_test_go

Run all go tests in parallel (6x speedup)
Fix indents
Merge pull request #771 from thockin/cleanups

Fix indents
add retries to salt bootstrap download
Merge branch 'master' of github.com:jdef/kubernetes
Merge pull request #762 from jdef/master

add retries to salt bootstrap download
Switched Set to Create
Make interval a constant on proxy/config/etcd

Allow future testing of intervals
Remove long sleeps from proxy tests
Validate on replicas being non-negative
dedupe registry.MakeEndpointController init
dedupe apiserver.New
Merge pull request #772 from derekwaynecarr/stop_negative_values

Validate on replicas being non-negative
Merge pull request #740 from brendandburns/sync

Switched Set to Create in etcd tools
Reduce nesting on ServiceRegistryStorage.Create
Merge pull request #773 from smarterclayton/speed_up_proxy_tests

Remove 8 seconds of unnecessary sleeps from proxy tests
ServiceRegistryStorage.Delete should respect zone.
Merge pull request #775 from nyaxt/misc_cleanup

Minor clean ups for readability