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, 45 deletions

diff --git a/middleware/errors/setup_test.go b/middleware/errors/setup_test.go
deleted file mode 100644
index bae85da32..000000000
--- a/middleware/errors/setup_test.go
+++ /dev/null
@@ -1,45 +0,0 @@
-package errors
-
-import (
-	"testing"
-
-	"github.com/mholt/caddy"
-)
-
-func TestErrorsParse(t *testing.T) {
-	tests := []struct {
-		inputErrorsRules     string
-		shouldErr            bool
-		expectedErrorHandler errorHandler
-	}{
-		{`errors`, false, errorHandler{
-			LogFile: "stdout",
-		}},
-		{`errors stdout`, false, errorHandler{
-			LogFile: "stdout",
-		}},
-		{`errors errors.txt`, true, errorHandler{
-			LogFile: "",
-		}},
-		{`errors visible`, true, errorHandler{
-			LogFile: "",
-		}},
-		{`errors { log visible }`, true, errorHandler{
-			LogFile: "stdout",
-		}},
-	}
-	for i, test := range tests {
-		c := caddy.NewTestController("dns", test.inputErrorsRules)
-		actualErrorsRule, err := errorsParse(c)
-
-		if err == nil && test.shouldErr {
-			t.Errorf("Test %d didn't error, but it should have", i)
-		} else if err != nil && !test.shouldErr {
-			t.Errorf("Test %d errored, but it shouldn't have; got '%v'", i, err)
-		}
-		if actualErrorsRule.LogFile != test.expectedErrorHandler.LogFile {
-			t.Errorf("Test %d expected LogFile to be %s, but got %s",
-				i, test.expectedErrorHandler.LogFile, actualErrorsRule.LogFile)
-		}
-	}
-}