refactor: use dep for dependency management

.gitignore

@@ -4,6 +4,7 @@
 .LSOverride
 
 node_modules
+vendor
 package-lock.json
 yarn.lock
 dist

Gopkg.toml

@@ -0,0 +1,78 @@
+# Gopkg.toml example
+#
+# Refer to https://golang.github.io/dep/docs/Gopkg.toml.html
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#   name = "github.com/x/y"
+#   version = "2.4.0"
+#
+# [prune]
+#   non-go = false
+#   go-tests = true
+#   unused-packages = true
+
+
+[[constraint]]
+  name = "github.com/PuerkitoBio/goquery"
+  version = "1.4.0"
+
+[[constraint]]
+  name = "github.com/apex/log"
+  version = "1.0.0"
+
+[[constraint]]
+  name = "github.com/fatih/set"
+  version = "0.1.0"
+
+[[constraint]]
+  name = "github.com/gorilla/mux"
+  version = "1.6.1"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/kballard/go-shellquote"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/mitchellh/go-homedir"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/mitchellh/mapstructure"
+
+[[constraint]]
+  name = "github.com/spf13/cobra"
+  version = "0.0.2"
+
+[[constraint]]
+  name = "github.com/spf13/pflag"
+  version = "1.0.0"
+
+[[constraint]]
+  name = "github.com/spf13/viper"
+  version = "1.0.2"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/xrash/smetrics"
+
+[[constraint]]
+  name = "golang.org/x/text"
+  version = "0.3.0"
+
+[prune]
+  go-tests = true
+  unused-packages = true