Plus, group them in a logical sequence instead of a type-specific one by
following the order being used in the new example files.

This commit should not introduce any functional changes!

Refers to #29

One file ("config.common.xml") containing site-global configuration
settings, the other one (the file name equals the host name with a
".xml" suffix) containing host-specific settings.

Both files use the same syntax and may contain the same setting
attributes with the host-specific one having priority over the
site-global one.

Refers to #18

Refers to #18

Add the template files as links to the ATxService project, pointing to
the central "Solution Items" files and mark them for copying to the
build output location. Update the Make-Package script accordingly.

Refers to #24

They are already set by the XmlSerializer class to the default value of
the corresponding data type.

Refers to #25

Refers to #3

In this case return "never" instead of calculating the delta.

Refers to #25

Refers to #28

Refers to #13

Refers to #24

Refers to #28

Refers to #2

Refers to #2

Refers to #2

We can just derive a status change from the fact that the file system
watcher has fired, so no need to evaluate all kinds of things first.

Refers to #23

Refers to #2

Refers to #2

Refers to #2