Add environment variables support

glide.lock

@@ -5,6 +5,8 @@ imports:
   version: f8b334df3789fbdf98df3b3b22815e958b956c19
 - name: github.com/fatih/color
   version: 570b54cabe6b8eb0bc2dfce68d964677d63b5260
+- name: github.com/fsnotify/fsnotify
+  version: 4da3e2cfbabc9f751898f250b49f2439785783a1
 - name: github.com/gernest/wow
   version: 57298475c6371a5a652e74dcf624c80edfc5ae1a
   subpackages:
@@ -15,16 +17,72 @@ imports:
   version: b32fa301c9fe55953584134cb6853a13c87ec0a1
 - name: github.com/gorilla/websocket
   version: ea4d1f681babbce9545c9c5f3d5194a789c89f5b
-- name: github.com/jessevdk/go-flags
-  version: 96dc06278ce32a0e9d957d590bb987c81ee66407
+- name: github.com/hashicorp/hcl
+  version: 23c074d0eceb2b8a5bfdbb271ab780cde70f05a8
+  subpackages:
+  - hcl/ast
+  - hcl/parser
+  - hcl/scanner
+  - hcl/strconv
+  - hcl/token
+  - json/parser
+  - json/scanner
+  - json/token
+- name: github.com/magiconair/properties
+  version: 8d7837e64d3c1ee4e54a880c5a920ab4316fc90a
+- name: github.com/mattn/go-colorable
+  version: 5411d3eea5978e6cdc258b30de592b60df6aba96
+  repo: https://github.com/mattn/go-colorable
+- name: github.com/mattn/go-isatty
+  version: 57fdcb988a5c543893cc61bce354a6e24ab70022
+  repo: https://github.com/mattn/go-isatty
+- name: github.com/mitchellh/mapstructure
+  version: 06020f85339e21b2478f756a78e295255ffa4d6a
+- name: github.com/pelletier/go-toml
+  version: 4e9e0ee19b60b13eb79915933f44d8ed5f268bdd
 - name: github.com/pkg/errors
   version: 645ef00459ed84a119197bfb8d8205042c6df63d
+- name: github.com/pmezard/go-difflib
+  version: d8ed2627bdf02c080bf22230dbb337003b7aba2d
+  subpackages:
+  - difflib
+- name: github.com/spf13/afero
+  version: 5660eeed305fe5f69c8fc6cf899132a459a97064
+  subpackages:
+  - mem
+- name: github.com/spf13/cast
+  version: acbeb36b902d72a7a4c18e8f3241075e7ab763e4
+- name: github.com/spf13/jwalterweatherman
+  version: 12bd96e66386c1960ab0f74ced1362f66f552f7b
+- name: github.com/spf13/pflag
+  version: 97afa5e7ca8a08a383cb259e06636b5e2cc7897f
+- name: github.com/spf13/viper
+  version: 8ef37cbca71638bf32f3d5e194117d4cb46da163
+- name: github.com/stretchr/objx
+  version: cbeaeb16a013161a98496fad62933b1d21786672
 - name: github.com/stretchr/testify
   version: 69483b4bd14f5845b5a1e55bca19e954e827f1d0
   subpackages:
   - mock
+- name: golang.org/x/crypto
+  version: 2509b142fb2b797aa7587dad548f113b2c0f20ce
+  subpackages:
+  - ssh/terminal
+- name: golang.org/x/sys
+  version: e24f485414aeafb646f6fca458b0bf869c0880a1
+  repo: https://go.googlesource.com/sys
+  subpackages:
+  - unix
+  - windows
+- name: golang.org/x/text
+  version: 6eab0e8f74e86c598ec3b6fad4888e0c11482d48
+  subpackages:
+  - transform
+  - unicode/norm
 - name: gopkg.in/go-playground/validator.v9
   version: a021b2ec9a8a8bb970f3f15bc42617cb520e8a64
 - name: gopkg.in/tylerb/graceful.v1
   version: 4654dfbb6ad53cb5e27f37d99b02e16c1872fbbb
+- name: gopkg.in/yaml.v2
+  version: eb3733d160e74a9c7e442f435eb3bea458e1d19f
 testImports: []