Adds a handy script to clear builds/cache/etc

package.json

@@ -20,7 +20,8 @@
     "commit-release": "node ./tools/bin/commit-release.js",
     "tag-release": "node ./tools/bin/tag-release.js",
     "update-changelog": "node ./tools/bin/update-changelog.js",
-    "release": "node ./tools/release-wizard.js"
+    "release": "node ./tools/release-wizard.js",
+    "clear": ". scripts/Clear.sh"
   },
   "dependencies": {
     "@ptomasroos/react-native-multi-slider": "^1.0.0",

scripts/clear.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+echo "rm -rf ios/build..."
+rm -rf ios/build
+
+echo "rm -rf android/app/build..."
+rm -rf android/app/build
+
+echo "Removed all Xcode derived data..."
+rm -rf ~/Library/Developer/Xcode/DerivedData
+
+echo "watchman watch-del-all..."
+watchman watch-del-all
+
+echo "rm -rf node_modules..."
+rm -rf node_modules
+
+echo "npm install..."
+npm install
+
+echo "rm -rf $TMPDIR/react-*..."
+rm -rf $TMPDIR/react-*
+
+echo "rm -rf $TMPDIR/haste-map-react-native-packager-*..."
+rm -rf $TMPDIR/haste-map-react-native-packager-*