Adding new RemoteFileSource which supports path expressions. The old one is migrated to RemoteFileLegacySource.
Revert "Adding new RemoteFileSource which supports path expressions. The old one is migrated to RemoteFileLegacySource."

This reverts commit 747bf35cb4332a5f8fa0a02c8a7616d97245b6cb.
Merge branch 'master' of github.com:SumoLogic/sumo-java-client into chr-isearch