0.27.1

This minor release brings a bunch of enhancements to the extra.d folder support after testing and feedback from the wild. Also some additional merge requests have been merged.

• Feature : Add support for local Javascript modules in extra.d plugins.
• Feature : Add support for symbolic links inside extra.d folder.
• Bugfix : Use extra.d folder even when there is no extra folder.
• Change : Compare HMACs in constant time.