Replace gogits/git-module dependency with go-gitea/git (#94)

* Replace gogits/git-module dependency with go-gitea/git

Fixes #92

* Remove git alias for git module import (not needed)

routers/api/v1/convert/convert.go

@@ -9,7 +9,7 @@ import (
 
 	"github.com/Unknwon/com"
 
-	"github.com/gogits/git-module"
+	"github.com/go-gitea/git"
 	api "github.com/gogits/go-gogs-client"
 
 	"github.com/go-gitea/gitea/models"

routers/api/v1/repo/file.go

@@ -5,7 +5,7 @@
 package repo
 
 import (
-	"github.com/gogits/git-module"
+	"github.com/go-gitea/git"
 
 	"github.com/go-gitea/gitea/models"
 	"github.com/go-gitea/gitea/modules/context"