Update bleve dependency to latest master revision (#6100)

* update bleve to master b17287a86f6cac923a5d886e10618df994eeb54b6724eac2e3b8dde89cfbe3a2

* remove unused pkg from dep file

* change bleve from master to recent revision

vendor/github.com/blevesearch/bleve/search/levenshtein.go

@@ -57,15 +57,24 @@ func LevenshteinDistance(a, b string) int {
 // in which case the first return val will be the max
 // and the second will be true, indicating max was exceeded
 func LevenshteinDistanceMax(a, b string, max int) (int, bool) {
+	v, wasMax, _ := LevenshteinDistanceMaxReuseSlice(a, b, max, nil)
+	return v, wasMax
+}
+
+func LevenshteinDistanceMaxReuseSlice(a, b string, max int, d []int) (int, bool, []int) {
 	la := len(a)
 	lb := len(b)
 
 	ld := int(math.Abs(float64(la - lb)))
 	if ld > max {
-		return max, true
+		return max, true, d
 	}
 
-	d := make([]int, la+1)
+	if cap(d) < la+1 {
+		d = make([]int, la+1)
+	}
+	d = d[:la+1]
+
 	var lastdiag, olddiag, temp int
 
 	for i := 1; i <= la; i++ {
@@ -98,8 +107,8 @@ func LevenshteinDistanceMax(a, b string, max int) (int, bool) {
 		}
 		// after each row if rowmin isn't less than max stop
 		if rowmin > max {
-			return max, true
+			return max, true, d
 		}
 	}
-	return d[la], false
+	return d[la], false, d
 }