change sensor aggregation (sum, average) to ignore/null on no values, with cleaner customisation semantics and tests
geodns does periodic full refresh (needed to pick up value *changes* after creation, until we have it doing subscriptions properly)
use BrooklynConfigKeys in cases where load order might cause final static to be null
test picking up display names for locations, and comments
bump http-client version to 4.2.5 (needed for ravello)
tweak fix for postgres installation following failure
geo-dns exclude private IP's, and slight tweak to order to accept ip's without hostname or vice-versa
fix sensors view so toggle-empty works with new set of columns
code review (explicitly saying behaviour is deprecated)
Merge pull request #929 from ahgittin/misc

a fair few minor fixes and tweaks in the course of working with global day trader in sce