Refers to #3

Currently this is almost entirely untested and configuration for email
notifications is yet to be done.

Refers to #3

Since we have more to share between the applications than just the XML
wrappers, this is the location to keep common classes and methods.

This removes the XmlWrapper namespace and uses the DLL instead.

Fixes #21

An email will be sent only if the time since the last one exceeds the
new configuration option "GraceNotificationDelta", defaulting to 12
hours.

Fixes #1

Make GraceLocationSummary() return an empty string instead, if no
expired folders exist in the grace location.

Refers to #1

This is done using a git-hook script generating a text file which is
used as a resource by VS. The pre-build script in VS makes sure the file
is actually existing (using a default string) since otherwise the build
would fail.

Refers to #1

Refers to #1

Refers to #1

Refers to #1

Refers to #1

Catch exceptions in case setting the ACLs fails, make the operation
optional by adding the parameter resetAcls (defaulting to false).

Refers to #16