HUE-8687 [frontend] Add generated js bundles to .gitignore

This also adds a build step in "make apps" that generates the bundles

.gitignore

@@ -108,3 +108,6 @@ dependency-reduced-pom.xml
 node_modules/
 
 junitresults*
+
+# Generated js bundles
+desktop/core/src/desktop/static/desktop/js/bundles/

Makefile

@@ -152,6 +152,7 @@ desktop: virtual-env
 ###################################
 .PHONY: apps
 apps: desktop
+	npm run webpack
 	@$(MAKE) -C $(APPS_DIR) env-install
 
 ###################################

docs/sdk/sdk.md

@@ -259,7 +259,7 @@ namespace. See ``apps/about/src/about/urls.py`` for an example.
 Developing for the Hue SDK has similar requirements to running
 Hue itself.  We require Python 2.7, Django (1.11 included
 with our distribution), Hadoop (Apache Hadoop 2+), Java (Java 1.8),
-and a browser (latest Chrome, Firefox or IE11+).
+, a browser (latest Chrome, Firefox or IE11+) and npm (6.4+).
 
 ### Recommended Reading / Important Technologies
 

tools/scripts/hue-review

@@ -20,7 +20,6 @@ shift 3;
 exec $RBT post \
 	-o \
 	-X /'*.css' \
-	-X /'*/js/bundles/**' \
 	-X /'*AutocompleteParser.js' \
 	-X /'*.json' \
 	-X /'*SyntaxParser.js' \