Add vendor dir (#16) (#4)

* Add vendor dir so builds dont require dep

* Pin specific version go-eth version

vendor/github.com/btcsuite/btcd/limits/limits_plan9.go

@@ -0,0 +1,10 @@
+// Copyright (c) 2013-2014 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package limits
+
+// SetLimits is a no-op on Plan 9 due to the lack of process accounting.
+func SetLimits() error {
+	return nil
+}

vendor/github.com/btcsuite/btcd/limits/limits_unix.go

@@ -0,0 +1,52 @@
+// Copyright (c) 2013-2014 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+// +build !windows,!plan9
+
+package limits
+
+import (
+	"fmt"
+	"syscall"
+)
+
+const (
+	fileLimitWant = 2048
+	fileLimitMin  = 1024
+)
+
+// SetLimits raises some process limits to values which allow btcd and
+// associated utilities to run.
+func SetLimits() error {
+	var rLimit syscall.Rlimit
+
+	err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rLimit)
+	if err != nil {
+		return err
+	}
+	if rLimit.Cur > fileLimitWant {
+		return nil
+	}
+	if rLimit.Max < fileLimitMin {
+		err = fmt.Errorf("need at least %v file descriptors",
+			fileLimitMin)
+		return err
+	}
+	if rLimit.Max < fileLimitWant {
+		rLimit.Cur = rLimit.Max
+	} else {
+		rLimit.Cur = fileLimitWant
+	}
+	err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rLimit)
+	if err != nil {
+		// try min value
+		rLimit.Cur = fileLimitMin
+		err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rLimit)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

vendor/github.com/btcsuite/btcd/limits/limits_windows.go

@@ -0,0 +1,10 @@
+// Copyright (c) 2013-2014 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package limits
+
+// SetLimits is a no-op on Windows since it's not required there.
+func SetLimits() error {
+	return nil
+}