Fixed the install script to get the latest image from developer-tools-bundle project.
Fixed the install script to get the latest image from developer-tools-bundle project.

Jericho25/appengine-codiad,Jericho25/appengine-codiad,google/appengine-codiad,MetaStackers/appengine-codiad,Jericho25/appengine-codiad,google/appengine-codiad,JeckoHeroOrg/appengine-codiad,Jericho25/appengine-codiad,JeckoHeroOrg/appengine-codiad,MetaStackers/appengine-codiad,JeckoHeroOrg/appengine-codiad,google/appengine-codiad,google/appengine-codiad,MetaStackers/appengine-codiad,MetaStackers/appengine-codiad,JeckoHeroOrg/appengine-codiad