update dependencies

Ran a `go get -u` and bumped K8s deps to 1.15.0.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

vendor/github.com/opentracing/opentracing-go/.travis.yml

@@ -2,9 +2,8 @@ language: go
 
 matrix:
   include:
-  - go: "1.7.x"
-  - go: "1.8.x"
-  - go: "1.9.x"
+  - go: "1.11.x"
+  - go: "1.12.x"
   - go: "tip"
     env:
     - LINT=true
@@ -13,7 +12,6 @@ matrix:
 install:
   - if [ "$LINT" == true ]; then go get -u golang.org/x/lint/golint/... ; else echo 'skipping lint'; fi
   - go get -u github.com/stretchr/testify/...
-  - go get -u golang.org/x/net/context
 
 script:
   - make test

vendor/github.com/opentracing/opentracing-go/CHANGELOG.md

@@ -1,11 +1,43 @@
 Changes by Version
 ==================
 
-1.1.0 (unreleased)
+1.1.0 (2019-03-23)
 -------------------
 
-- Deprecate InitGlobalTracer() in favor of SetGlobalTracer()
+Notable changes:
+- The library is now released under Apache 2.0 license
+- Use Set() instead of Add() in HTTPHeadersCarrier is functionally a breaking change (fixes issue [#159](https://github.com/opentracing/opentracing-go/issues/159))
+- 'golang.org/x/net/context' is replaced with 'context' from the standard library
 
+List of all changes:
+
+- Export StartSpanFromContextWithTracer (#214) <Aaron Delaney>
+- Add IsGlobalTracerRegistered() to indicate if a tracer has been registered (#201) <Mike Goldsmith>
+- Use Set() instead of Add() in HTTPHeadersCarrier (#191) <jeremyxu2010>
+- Update license to Apache 2.0 (#181) <Andrea Kao>
+- Replace 'golang.org/x/net/context' with 'context' (#176) <Tony Ghita>
+- Port of Python opentracing/harness/api_check.py to Go (#146) <chris erway>
+- Fix race condition in MockSpan.Context() (#170) <Brad>
+- Add PeerHostIPv4.SetString() (#155)  <NeoCN>
+- Add a Noop log field type to log to allow for optional fields (#150)  <Matt Ho>
+
+
+1.0.2 (2017-04-26)
+-------------------
+
+- Add more semantic tags (#139) <Rustam Zagirov>
+
+
+1.0.1 (2017-02-06)
+-------------------
+
+- Correct spelling in comments <Ben Sigelman>
+- Address race in nextMockID() (#123) <bill fumerola>
+- log: avoid panic marshaling nil error (#131) <Anthony Voutas>
+- Deprecate InitGlobalTracer in favor of SetGlobalTracer (#128) <Yuri Shkuro>
+- Drop Go 1.5 that fails in Travis (#129) <Yuri Shkuro>
+- Add convenience methods Key() and Value() to log.Field <Ben Sigelman>
+- Add convenience methods to log.Field (2 years, 6 months ago) <Radu Berinde>
 
 1.0.0 (2016-09-26)
 -------------------

vendor/github.com/opentracing/opentracing-go/gocontext.go

@@ -41,11 +41,17 @@ func SpanFromContext(ctx context.Context) Span {
 //        ...
 //    }
 func StartSpanFromContext(ctx context.Context, operationName string, opts ...StartSpanOption) (Span, context.Context) {
-	return startSpanFromContextWithTracer(ctx, GlobalTracer(), operationName, opts...)
+	return StartSpanFromContextWithTracer(ctx, GlobalTracer(), operationName, opts...)
 }
 
-// startSpanFromContextWithTracer is factored out for testing purposes.
-func startSpanFromContextWithTracer(ctx context.Context, tracer Tracer, operationName string, opts ...StartSpanOption) (Span, context.Context) {
+// StartSpanFromContextWithTracer starts and returns a span with `operationName`
+// using  a span found within the context as a ChildOfRef. If that doesn't exist
+// it creates a root span. It also returns a context.Context object built
+// around the returned span.
+//
+// It's behavior is identical to StartSpanFromContext except that it takes an explicit
+// tracer as opposed to using the global tracer.
+func StartSpanFromContextWithTracer(ctx context.Context, tracer Tracer, operationName string, opts ...StartSpanOption) (Span, context.Context) {
 	if parentSpan := SpanFromContext(ctx); parentSpan != nil {
 		opts = append(opts, ChildOf(parentSpan.Context()))
 	}

vendor/github.com/opentracing/opentracing-go/tracer.go

@@ -44,8 +44,7 @@ type Tracer interface {
 	// and each has an expected carrier type.
 	//
 	// Other packages may declare their own `format` values, much like the keys
-	// used by `context.Context` (see
-	// https://godoc.org/golang.org/x/net/context#WithValue).
+	// used by `context.Context` (see https://godoc.org/context#WithValue).
 	//
 	// Example usage (sans error handling):
 	//