hpcc-systems/HPCC-Platform — pull request #6306 by wangkx (2014-07-28 12:07:56+00:00)
Title: HPCC-12012 Cache PackageMaps/PackageSets info in WsPackageProcess

The PackageMaps/PackageSets info is cached into WsPackageProcess
in order to avoid unecessary calls to dali. Subscribe/notify is
used for dali to notify the ESP service about possible changes
of the PackageMaps/PackageSets info.