added required fields for manuscript work items.
updated amberdb version.
grouped new addition of fields into work, series and folder.
updated api so that a series is always created as a top-level work.
added new form for manuscript collection.
allow the folder property to be multi-valued in work.
started a multilevel work test for ead.
Merge remote-tracking branch 'origin/master' into series
added amberdb facade.
pull back unit test to be refactored.
code refactor.
include latest changes.
update version.
fixed some comments
added unit test for EADWork.
Update AmberModelTypes.java
Update AmberSession.java
missed adding EADWork type value.
Merge pull request #201 from nla/series

Series