Created LocationPropertiesFromBrooklynProperties

- uses brooklyn.location.* and brooklyn.location.<provider>.*
jclouds extends LocationPropertiesFromBrooklynProperties

- uses brooklyn.location.jclouds.*
- deprecate old brooklyn.jclouds.*
LocalhostResolver: use LocalhostPropertiesFromBrooklynProperties
brooklyn.location property prefix: incorporate review comments
Merge pull request #894 from aledsage/refactor/location-properties-prefix

Use property prefix "brooklyn.location", and add LocationPropertiesFromBrooklynProperties
KeyValueParser: add comment about using Splitter

- guava's splitter provides similar functionality; adds comment
  recommending people look at that.
Convert EntityExecutionManagerTest to java
Fix EntityExecutionManagerTest
Merge branch 'fix/EntityExecutionManagerTest-20130820' of https://github.com/aledsage/brooklyn into feature/tasks-tree-2
reenable failing test