update influxdb to v1.1.1 and change client to v2

vendor/github.com/influxdata/influxdb/models/inline_fnv.go

@@ -0,0 +1,27 @@
+package models
+
+// from stdlib hash/fnv/fnv.go
+const (
+	prime64  = 1099511628211
+	offset64 = 14695981039346656037
+)
+
+// InlineFNV64a is an alloc-free port of the standard library's fnv64a.
+type InlineFNV64a uint64
+
+func NewInlineFNV64a() InlineFNV64a {
+	return offset64
+}
+
+func (s *InlineFNV64a) Write(data []byte) (int, error) {
+	hash := uint64(*s)
+	for _, c := range data {
+		hash ^= uint64(c)
+		hash *= prime64
+	}
+	*s = InlineFNV64a(hash)
+	return len(data), nil
+}
+func (s *InlineFNV64a) Sum64() uint64 {
+	return uint64(*s)
+}