Remove the word middleware (#1067)

* Rename middleware to plugin

first pass; mostly used 'sed', few spots where I manually changed
text.

This still builds a coredns binary.

* fmt error

* Rename AddMiddleware to AddPlugin

* Readd AddMiddleware to remain backwards compat

1 files changed, 0 insertions, 30 deletions

diff --git a/middleware/bind/bind_test.go b/middleware/bind/bind_test.go
deleted file mode 100644
index 11556f0bd..000000000
--- a/middleware/bind/bind_test.go
+++ /dev/null
@@ -1,30 +0,0 @@
-package bind
-
-import (
-	"testing"
-
-	"github.com/coredns/coredns/core/dnsserver"
-
-	"github.com/mholt/caddy"
-)
-
-func TestSetupBind(t *testing.T) {
-	c := caddy.NewTestController("dns", `bind 1.2.3.4`)
-	err := setupBind(c)
-	if err != nil {
-		t.Fatalf("Expected no errors, but got: %v", err)
-	}
-
-	cfg := dnsserver.GetConfig(c)
-	if got, want := cfg.ListenHost, "1.2.3.4"; got != want {
-		t.Errorf("Expected the config's ListenHost to be %s, was %s", want, got)
-	}
-}
-
-func TestBindAddress(t *testing.T) {
-	c := caddy.NewTestController("dns", `bind 1.2.3.bla`)
-	err := setupBind(c)
-	if err == nil {
-		t.Fatalf("Expected errors, but got none")
-	}
-}