directory structure change to work with glide

glide has its own requirements. My previous workaround caused me some
code checkin errors. Need to fix this.

weed/command/mount.go

@@ -0,0 +1,35 @@
+package command
+
+type MountOptions struct {
+	filer *string
+	dir   *string
+}
+
+var (
+	mountOptions MountOptions
+)
+
+func init() {
+	cmdMount.Run = runMount // break init cycle
+	cmdMount.IsDebug = cmdMount.Flag.Bool("debug", false, "verbose debug information")
+	mountOptions.filer = cmdMount.Flag.String("filer", "localhost:8888", "weed filer location")
+	mountOptions.dir = cmdMount.Flag.String("dir", ".", "mount weed filer to this directory")
+}
+
+var cmdMount = &Command{
+	UsageLine: "mount -filer=localhost:8888 -dir=/some/dir",
+	Short:     "mount weed filer to a directory as file system in userspace(FUSE)",
+	Long: `mount weed filer to userspace.
+
+  Pre-requisites:
+  1) have SeaweedFS master and volume servers running
+  2) have a "weed filer" running
+  These 2 requirements can be achieved with one command "weed server -filer=true"
+
+  This uses bazil.org/fuse, whichenables writing FUSE file systems on
+  Linux, and OS X.
+
+  On OS X, it requires OSXFUSE (http://osxfuse.github.com/).
+
+  `,
+}