Update vendored dependencies (#147)

* Prepare readme for release

* Update vendored packages

* New version of dns dependency handles rejecting UPDATEs under the hood

* Go 1.11 required

vendor/github.com/klauspost/compress/fse/fse.go

@@ -14,6 +14,7 @@ package fse
 import (
 	"errors"
 	"fmt"
+	"math/bits"
 )
 
 const (
@@ -136,3 +137,7 @@ func (s *Scratch) prepare(in []byte) (*Scratch, error) {
 func tableStep(tableSize uint32) uint32 {
 	return (tableSize >> 1) + (tableSize >> 3) + 3
 }
+
+func highBits(val uint32) (n uint32) {
+	return uint32(bits.Len32(val) - 1)
+}

vendor/github.com/klauspost/compress/fse/highbit_go19.go

@@ -1,9 +0,0 @@
-// +build go1.9
-
-package fse
-
-import "math/bits"
-
-func highBits(val uint32) (n uint32) {
-	return uint32(bits.Len32(val) - 1)
-}

vendor/github.com/klauspost/compress/fse/highbit_old.go

@@ -1,18 +0,0 @@
-// +build !go1.9
-
-package fse
-
-var deBruijnClz = [...]uint8{0, 9, 1, 10, 13, 21, 2, 29,
-	11, 14, 16, 18, 22, 25, 3, 30,
-	8, 12, 20, 28, 15, 17, 24, 7,
-	19, 27, 23, 6, 26, 5, 4, 31}
-
-// highBits returns the highest set bit
-func highBits(v uint32) (n uint32) {
-	v |= v >> 1
-	v |= v >> 2
-	v |= v >> 4
-	v |= v >> 8
-	v |= v >> 16
-	return uint32(deBruijnClz[(v*0x07C4ACDD)>>27])
-}