Recognize when configuration files are moved

[mariusoe]

The configuration server provides the ability to track changes in the working directory, by using a local Git repository.

Currently, a file is marked as removed and added (as a new file) in case it is just used moved to another location or being renamed. Due to the fact that the configuration server provides a specific endpoint for moving or renaming files, this endpoint could allow the server to mark/recognize such modification as a move/rename action instead of a remove/add one.