begin 0.18-SNAPSHOT
add sync() to swappable filer to pick up swaps by other refs to the same filer after locking; synchronize on page instead of key in FileBackMapStore
release 0.18
begin 0.19-SNAPSHOT
check for directory existence before calculating sizeInBytes
release 0.19
Merge branch 'develop'

Conflicts:
	code/com/jivesoftware/os/jive-utils/base/pom.xml
	code/com/jivesoftware/os/jive-utils/chunk-store/pom.xml
	code/com/jivesoftware/os/jive-utils/http-client-rest/pom.xml
	code/com/jivesoftware/os/jive-utils/http-client/pom.xml
	code/com/jivesoftware/os/jive-utils/inheritance-poms/global-build-management/pom.xml
	code/com/jivesoftware/os/jive-utils/inheritance-poms/global-plugin-management/pom.xml
	code/com/jivesoftware/os/jive-utils/inheritance-poms/global-repo-management/pom.xml
	code/com/jivesoftware/os/jive-utils/inheritance-poms/global-version-management/pom.xml
	code/com/jivesoftware/os/jive-utils/inheritance-poms/pom.xml
	code/com/jivesoftware/os/jive-utils/inheritance-poms/shared-lib-build-management/pom.xml
	code/com/jivesoftware/os/jive-utils/inheritance-poms/shared-lib-version-management/pom.xml
	code/com/jivesoftware/os/jive-utils/io/pom.xml
	code/com/jivesoftware/os/jive-utils/jaxrs-util/pom.xml
	code/com/jivesoftware/os/jive-utils/keyed-store/pom.xml
	code/com/jivesoftware/os/jive-utils/logger/pom.xml
	code/com/jivesoftware/os/jive-utils/map-store/pom.xml
	code/com/jivesoftware/os/jive-utils/merlin-config/pom.xml
	code/com/jivesoftware/os/jive-utils/ordered-id/pom.xml
	code/com/jivesoftware/os/jive-utils/pom.xml
	code/com/jivesoftware/os/jive-utils/row-column-value-store/pom.xml
	code/com/jivesoftware/os/jive-utils/row-column-value-store/row-column-value-store-api/pom.xml
	code/com/jivesoftware/os/jive-utils/row-column-value-store/row-column-value-store-hbase-ha-tests/pom.xml
	code/com/jivesoftware/os/jive-utils/row-column-value-store/row-column-value-store-hbase/pom.xml
	code/com/jivesoftware/os/jive-utils/row-column-value-store/row-column-value-store-inmemory/pom.xml
	code/com/jivesoftware/os/jive-utils/row-column-value-store/row-column-value-store-marshall-api/pom.xml
	code/com/jivesoftware/os/jive-utils/row-column-value-store/row-column-value-store-marshall-primatives/pom.xml
	code/com/jivesoftware/os/jive-utils/row-column-value-store/row-column-value-store-shared/pom.xml
	code/com/jivesoftware/os/jive-utils/row-column-value-store/row-column-value-store-tests/pom.xml
	code/com/jivesoftware/os/jive-utils/server-http-jetty-jersey/pom.xml
	code/com/jivesoftware/os/jive-utils/shell-utils/pom.xml