Drop Go 1.4 support

Due to golang.org/x/crypto/ssh requires a method from STD in Go 1.5. And Go 1.4 is fairly old version for now.
8 years ago · 55dc9d898f
2 changed files with 1 additions and 2 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -1,7 +1,6 @@
 language: go

 go:
-  - 1.4
  - 1.5
  - 1.6
  - 1.7
--- a/gogs.go
+++ b/gogs.go
@ -1,4 +1,4 @@
-// +build go1.4
+// +build go1.5

 // Copyright 2014 The Gogs Authors. All rights reserved.
 // Use of this source code is governed by a MIT-style