Add bower and karma installation to base image

Change-Id: I53966cb5643432d207c0f627b05fbc780a20ed7f
diff --git a/packer/provision/basebuild.sh b/packer/provision/basebuild.sh
index 6ff4d4c..f46c797 100644
--- a/packer/provision/basebuild.sh
+++ b/packer/provision/basebuild.sh
@@ -38,6 +38,8 @@
         nodejs \
         npm \
         # end of apt-get install list
+    npm install -g bower
+    npm install karma --save-dev
     #TODO clean up
     #apt-get clean
     #apt-get purge -y