Adds client manager

examples: add sample for clients

adds a client manager to handle business logic, leaving the repo
for basic crud operations. Also adds client to the test script

Adds consistency to existing samples for users, connectors, etc., as
well as protects users from accidental changes to files under Git, which
is why there are samples after all.

Documentation: use "cp" instead of "mv" to keep git state untouched

Revert "Fix response_type missing param"

This reverts commit 821b242c.

add links to issues in roadmap

*: fix build script to work outside of GOPATH

Closes #439

examples/app: Show refresh token as well

* Create a proposal template.

Also update CONTRIBUTING.md to mention use of proposals

This allows users to easily browse through the tickets mentioned in dex roadmap
Signed-off-by: Christoph Hartmann <chris@lollyrock.com>

use go 1.6.2 for docker go build

allow local image building without pushing

vendor: update go-oidc to fix parsing panic

fix/git-version: Update git-version to use valid docker tag if dirty

contrib/k8s: YAML brevity via references, minimum resource requests

- Add resources for deployments
- Add readiness probe for master
- Use YAML references for easier maintenance/readability

K8S dex-overlord.yaml ordering fix

Use Client defined in dex instead of go-oidc for storing clients

* TestCreateClient was missing test coverage on error cases
* Fixed bug where 500s were being reported for bad requests
* changed function signature of NewAdminAPI back to old way of passing
  in lots of repos: passing in a DbMap made it difficult to test
* added swappable ID and Secret generators when creating Clients

It's never used by downstream code, and besides, it's not really the
secret but a Hash of the secret.

Also require client ID and secret.

Get rid of all outdated "ClientIdentity" terminology.

This is instead of oidc.ClientIdentity. This makes it easier to add new
fields custom to dex to the client.