added support for descriptions of the archive itself
implemented default constructur for VCard.

jackson had a serialisation problem
fixed update of xml
updated test to not fail on foreign systems
added support for /extract to/...
improved extract to functionality
added support for renaming/moving entities [fixes #13]
get archive from entry.
fixed the vcard emptiness check.
fixed win uri problem
fixed umlauts issue.
improved error handling [fixes #16]

* it's now possible to read broken archives, see #16
* also implemented a test for that
fixed example test [fixes #17]
added support for multiple master files [fixes #20]
resolved move bug [fixes #21]
added archive entry to manifest [fixes #19]
check if location begins with slash, before adding one (windows-fix)
[special attention] formats are now URIs [fixes #18]

that, unfortunately, has some implications for backwards compatibility. formats
should now always be provided in form of URIs. old versions are still available,
but deprecated. functions returning the format will exlusively return URIs.

all the formatizing stuff was outsourced to our combine extension project,
available from git://sems.uni-rostock.de:combine-ext (see also
https://sems.uni-rostock.de/trac/combine-ext). especially the formatizer will be
interesting for you:
https://sems.uni-rostock.de/trac/combine-ext/wiki/CombineFormatizer

thus, you should definetly update your code.
Merge branch 'master' of gl:combinearchive