You need to have maven2 installed to build this project,
see: http://maven.apache.org/

Prior to running this as a maven build you need to have compiled
and installed the java-ref-impl into your local maven repository.
This is done by downloading and unpack java-ref-impl found at
openehr.org. Then go in to the unpacked root directory and type:
mvn clean install

The procedure above should only need to be done once. Then in order
to build LiU-EHR-GUI you enter it's root directory (probably the
one that contains this readme file) and type:
mvn clean install

Now if everything worked, the LiU-EHR-GUI is installed into your
local maven repository.