Moving from govendor to dep, updated dependencies (#48)

* Moving from govendor to dep.

* Making the pull request template more friendly.

* Fixing akward space in PR template.

* goimports run on whole project using ` goimports -w $(find . -type f -name '*.go' -not -path "./vendor/*" -not -path "./gen-go/*")`

source of command: https://gist.github.com/bgentry/fd1ffef7dbde01857f66

vendor/github.com/samuel/go-zookeeper/zk/util_test.go

@@ -0,0 +1,53 @@
+package zk
+
+import "testing"
+
+func TestFormatServers(t *testing.T) {
+	t.Parallel()
+	servers := []string{"127.0.0.1:2181", "127.0.0.42", "127.0.42.1:8811"}
+	r := []string{"127.0.0.1:2181", "127.0.0.42:2181", "127.0.42.1:8811"}
+	for i, s := range FormatServers(servers) {
+		if s != r[i] {
+			t.Errorf("%v should equal %v", s, r[i])
+		}
+	}
+}
+
+func TestValidatePath(t *testing.T) {
+	tt := []struct {
+		path  string
+		seq   bool
+		valid bool
+	}{
+		{"/this is / a valid/path", false, true},
+		{"/", false, true},
+		{"", false, false},
+		{"not/valid", false, false},
+		{"/ends/with/slash/", false, false},
+		{"/sequential/", true, true},
+		{"/test\u0000", false, false},
+		{"/double//slash", false, false},
+		{"/single/./period", false, false},
+		{"/double/../period", false, false},
+		{"/double/..ok/period", false, true},
+		{"/double/alsook../period", false, true},
+		{"/double/period/at/end/..", false, false},
+		{"/name/with.period", false, true},
+		{"/test\u0001", false, false},
+		{"/test\u001f", false, false},
+		{"/test\u0020", false, true}, // first allowable
+		{"/test\u007e", false, true}, // last valid ascii
+		{"/test\u007f", false, false},
+		{"/test\u009f", false, false},
+		{"/test\uf8ff", false, false},
+		{"/test\uffef", false, true},
+		{"/test\ufff0", false, false},
+	}
+
+	for _, tc := range tt {
+		err := validatePath(tc.path, tc.seq)
+		if (err != nil) == tc.valid {
+			t.Errorf("failed to validate path %q", tc.path)
+		}
+	}
+}