Added method to get remote location for dependency

This was previously re-implemented code in numerous places

A central location provides an single place to handle global
overrides
diff --git a/action/config_wizard.go b/action/config_wizard.go
index 1257980..ea627b4 100644
--- a/action/config_wizard.go
+++ b/action/config_wizard.go
@@ -67,12 +67,7 @@
 
 	var changes int
 	for _, dep := range deps {
-		var remote string
-		if dep.Repository != "" {
-			remote = dep.Repository
-		} else {
-			remote = "https://" + dep.Name
-		}
+		remote := dep.Remote()
 
 		// First check, ask if the tag should be used instead of the commit id for it.
 		cur := cache.MemCurrent(remote)
@@ -262,12 +257,7 @@
 		msg.Debug("Problem detecting cache location: %s", err)
 		return
 	}
-	var remote string
-	if d.Repository != "" {
-		remote = d.Repository
-	} else {
-		remote = "https://" + d.Name
-	}
+	remote := d.Remote()
 
 	key, err := cache.Key(remote)
 	if err != nil {
diff --git a/action/get.go b/action/get.go
index 5c34d5e..03c6c67 100644
--- a/action/get.go
+++ b/action/get.go
@@ -234,12 +234,7 @@
 }
 
 func getWizard(dep *cfg.Dependency) {
-	var remote string
-	if dep.Repository != "" {
-		remote = dep.Repository
-	} else {
-		remote = "https://" + dep.Name
-	}
+	remote := dep.Remote()
 
 	// Lookup dependency info and store in cache.
 	msg.Info("--> Gathering release information for %s", dep.Name)
diff --git a/cfg/config.go b/cfg/config.go
index 115c76d..60d385b 100644
--- a/cfg/config.go
+++ b/cfg/config.go
@@ -460,6 +460,16 @@
 	return newDep, nil
 }
 
+// Remote returns the remote location to fetch source from. This location is
+// the central place where overrides happen from.
+func (d *Dependency) Remote() string {
+	if d.Repository != "" {
+		return d.Repository
+	}
+
+	return "https://" + d.Name
+}
+
 // GetRepo retrieves a Masterminds/vcs repo object configured for the root
 // of the package being retrieved.
 func (d *Dependency) GetRepo(dest string) (vcs.Repo, error) {
diff --git a/repo/installer.go b/repo/installer.go
index 13d3fb0..c13bfe0 100644
--- a/repo/installer.go
+++ b/repo/installer.go
@@ -358,12 +358,7 @@
 			for {
 				select {
 				case dep := <-ch:
-					var loc string
-					if dep.Repository != "" {
-						loc = dep.Repository
-					} else {
-						loc = "https://" + dep.Name
-					}
+					loc := dep.Remote()
 					key, err := cache.Key(loc)
 					if err != nil {
 						msg.Die(err.Error())
diff --git a/repo/vcs.go b/repo/vcs.go
index 3f5f80d..e77e870 100644
--- a/repo/vcs.go
+++ b/repo/vcs.go
@@ -339,12 +339,7 @@
 				branch := findCurrentBranch(repo)
 				if branch != "" {
 					// we know the default branch so we can store it in the cache
-					var loc string
-					if dep.Repository != "" {
-						loc = dep.Repository
-					} else {
-						loc = "https://" + dep.Name
-					}
+					loc := dep.Remote()
 					key, err := cp.Key(loc)
 					if err == nil {
 						msg.Debug("Saving default branch for %s", repo.Remote())
@@ -370,12 +365,7 @@
 	// If opting in to caching attempt to put it in the cache folder
 	if cache {
 		// Check if the cache has a viable version and try to use that.
-		var loc string
-		if dep.Repository != "" {
-			loc = dep.Repository
-		} else {
-			loc = "https://" + dep.Name
-		}
+		loc := dep.Remote()
 		key, err := cp.Key(loc)
 		if err == nil {
 			location, err := cp.Location()
@@ -398,12 +388,7 @@
 				branch := findCurrentBranch(repo)
 				if branch != "" {
 					// we know the default branch so we can store it in the cache
-					var loc string
-					if dep.Repository != "" {
-						loc = dep.Repository
-					} else {
-						loc = "https://" + dep.Name
-					}
+					loc := dep.Remote()
 					key, err := cp.Key(loc)
 					if err == nil {
 						msg.Debug("Saving default branch for %s", repo.Remote())
@@ -449,12 +434,7 @@
 	if cache {
 		if branch := findCurrentBranch(repo); branch != "" {
 			// we know the default branch so we can store it in the cache
-			var loc string
-			if dep.Repository != "" {
-				loc = dep.Repository
-			} else {
-				loc = "https://" + dep.Name
-			}
+			loc := dep.Remote()
 			key, err := cp.Key(loc)
 			if err == nil {
 				msg.Debug("Saving default branch for %s", repo.Remote())