SLING-3956 - [windows] Serialization files are not taken into account
for folders

Paths returned from serializationManager.getSerializationFilePath are in
OS format, so treat the accordingly.

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1626180 13f79535-47bb-0310-9956-ffa450edef68