Added missing experiment annotation.

This is for #250
Changed uses annotation

This is for #250. OpenModelica needs multiple entries in one uses annotation as opposed to two separate uses annotation.
Removed IntegerSum

This is for #250. The block was nowhere used.
Removed UnoccupiedOn

This is for #250. The block was nowhere used.
Added StopTime

This is for #250.
Merge branch 'master' into ffd_miami