MultimapAdapter: make interaction actorA always the protein with the
smaller id.
entity/{Interaction, SystemType}: many-to-many relationship added
service/systemtype: getSystemType by name added
driver/interaction/Biogrid: emit system type information, sample source
changed, fake systype added.
SystemTypeAdapter added
controller/Interaction: use SystemTypeAdapter
service/Localizatin and loctree.textile added