Change location management. split current location and previous
locations to allow easy filtering on current location:
The location measurement now contains only the current location.
The newly added LocationHistory measurement contains alle the previous
locations (with start and end time).
update selenium to 2.35 to fix compatibility with recent versions of
Firefox. (see also commit in molgenis-legacy to update the
selenium-standalone-server jar to 2.35.
Add measurements to implement rotating breeding protocol:

Generation (measured on animal)
BreedingCageId (measured on animal)
LineBreedingProtocol (measured on line)
LineNrBreedingCages (measured on line)
Add method to retrieve a list of all observed values for a given target
and measurement to commonservice class
remove new method from previous commit because it is a duplicate of an
existing method.
Inital work on adding automatic generation and automatic rotating
breeding schedule for outbred Rat breeding, partly working, not finished
yet.