started migration to scala 2.11
[INTERMEDIATE] migrated to akka
migrated HttpManagerTest to akka and akka-testkit
[Intermediate] writing tests after migration to akka
more tests in suite FeedManagerTest
more tests in FeedManagerTest suite
all receive functions are wrapped in LoggingReceive
more tests in FeedManagerTest suite
finished tests for milestone
introduced LogSource to use actor path instead of its class name