Merge
Merge branch 'develop' into feature/datalists
Moved datalist generator to better place (to avoid it being inserted multiple times)
Fixed specs
Fixed and cleaned up fixture descriptor file
removed commented-out pry
Added datalist support to alps serializer
Fixed serialization issues - XML still needs a little work
Addressed comments
Fixed XML (de)serialization
Fixed missing ext element error
Merge branch 'develop' into feature/datalists
Fixed specs (after merge)
Increased coverage
Addressed comment
Addressed comment
Moved used datalists into serializer
Addressed comments
Removed unused branch (the 'options' branch is encoded in the ext element according to ALPS.
Test for empty alps data - and handle it