Add go.1.13 and remove go1.9 support, and upgrade gotils

.travis.yml

@@ -1,10 +1,10 @@
 language: go
 sudo: false
 go:
-  - 1.9.x
   - 1.10.x
   - 1.11.x
   - 1.12.x
+  - 1.13.x
   - tip
 
 os:

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/lib/pq v1.1.1
 	github.com/mattn/go-sqlite3 v1.10.0
 	github.com/savsgio/dictpool v0.0.0-20200105105721-dcc5d0fb3336
-	github.com/savsgio/gotils v0.0.0-20190925070755-524bc4f47500
+	github.com/savsgio/gotils v0.0.0-20200117113501-90175b0fbe3f
 	github.com/valyala/bytebufferpool v1.0.0
 	github.com/valyala/fasthttp v1.8.0
 )

go.sum

@@ -16,8 +16,9 @@ github.com/philhofer/fwd v1.0.0 h1:UbZqGr5Y38ApvM/V/jEljVxwocdweyH+vmYvRPBnbqQ=
 github.com/philhofer/fwd v1.0.0/go.mod h1:gk3iGcWd9+svBvR0sR+KPcfE+RNWozjowpeBVG3ZVNU=
 github.com/savsgio/dictpool v0.0.0-20200105105721-dcc5d0fb3336 h1:uNTNuA2SMv/dDb1qpS+dHt1CpfF/bn+Ha9Rtdnea1WM=
 github.com/savsgio/dictpool v0.0.0-20200105105721-dcc5d0fb3336/go.mod h1:NGDLryN7sdZ8/cG7QNKNaHBwUIPBgF0WeLZos9SpUi8=
-github.com/savsgio/gotils v0.0.0-20190925070755-524bc4f47500 h1:9Pi10H7E8E79/x2HSe1FmMGd7BJ1WAqDKzwjpv+ojFg=
 github.com/savsgio/gotils v0.0.0-20190925070755-524bc4f47500/go.mod h1:lHhJedqxCoHN+zMtwGNTXWmF0u9Jt363FYRhV6g0CdY=
+github.com/savsgio/gotils v0.0.0-20200117113501-90175b0fbe3f h1:PgA+Olipyj258EIEYnpFFONrrCcAIWNUNoFhUfMqAGY=
+github.com/savsgio/gotils v0.0.0-20200117113501-90175b0fbe3f/go.mod h1:lHhJedqxCoHN+zMtwGNTXWmF0u9Jt363FYRhV6g0CdY=
 github.com/tinylib/msgp v1.1.1 h1:TnCZ3FIuKeaIy+F45+Cnp+caqdXGy4z74HvwXN+570Y=
 github.com/tinylib/msgp v1.1.1/go.mod h1:+d+yLhGm8mzTaHzB+wgMYrodPfmZrzkirds8fDWklFE=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=