switch back to var version

Makefile

diff --git a/Makefile b/Makefile
index e7440a4..946edfe 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 GLIDE_GO_EXECUTABLE ?= go
 DIST_DIRS := find * -type d -exec
 VERSION := $(shell git describe --tags)
-VERSION_INCODE = $(shell perl -ne '/^const version.*"([^"]+)".*$$/ && print "v$$1\n"' glide.go)
+VERSION_INCODE = $(shell perl -ne '/^var version.*"([^"]+)".*$$/ && print "v$$1\n"' glide.go)
 VERSION_INCHANGELOG = $(shell perl -ne '/^\# Release (\d+(\.\d+)+) / && print "$$1\n"' CHANGELOG.md | head -n1)
 
 build:

glide.go

diff --git a/glide.go b/glide.go
index b0eac41..5f9c14f 100644
--- a/glide.go
+++ b/glide.go
@@ -34,7 +34,7 @@
 	"os"
 )
 
-const version = "0.13.0-dev"
+var version = "0.13.0-dev"
 
 const usage = `Vendor Package Management for your Go projects.