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CDB-2681 #resolve - fixing problem with Firefox 28 flickering
frontent assets version bump to 2.12.1
Merge branch 'master' into hotfix-20140408

Conflicts:
	config/frontend.yml
	lib/build/package.json
Merge branch 'master' into CDB-1788
Merge branch 'CDB-1788' of github.com:CartoDB/cartodb into CDB-1788
applying new dropbox services
application helper changed fixing frontend_config issue