add scripts to install babel6 and babel7 dependencies

Author: michalkvasnicak

install-babel-6.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+# fail on error
+set -e
+
+# remove babel core
+yarn remove @babel/core
+
+# install babel6
+yarn add -D babel-cli@^6.26.0 babel-core@^6.26.0 babel-plugin-transform-object-rest-spread@^6.26.0 babel-preset-env@^1.6.1 babel-register@^6.26.0

install-babel-7.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+# fail on error
+set -e
+
+# install babel7 deps
+yarn add -D babel-cli@^7.0.0-beta.3 babel-core@^7.0.0-beta.3 babel-register@^7.0.0-beta.3 babel-preset-env@^7.0.0-beta.3 @babel/core babel-plugin-transform-object-rest-spread@^7.0.0-beta.3 gulp-babel@7.0.0