Currently the POM is using the POM range "1.1". This is problematic, since it
prevents projects which are dependend on webdav-interop (like webdav-
addressbook) to use a later (i. e. bug fixed) release (e. g. 1.1.1). As a
result, those projects will possibly not run correctly, as they might be
depdend on a particular fix (which is why they are using a range like
[1.1.1,1.2) to indiciate that they need at least fix 1.1.1.
To solve the problem, the version range should never be one static version
like "1.1", but should always be a range of valid fixes, like "[1.1,1.2)" to
indicate that any fix of 1.1 is suitable. In fact, webdav-interop is not
dependend on exactly 1.1, it is guaranteed to work with any fix in that range
(which is, why the webdav-jaxrs web site clearly says that exactly that range
shall be used).