added unique key on result_set, corrected primary key on chip_cahnnel to fix nasty chip_channel_id bug
added unique key on result_set, corrected primary key on chip_cahnnel to fix nasty chip_channel_id bug

Ensembl/ensembl-funcgen,Ensembl/ensembl-funcgen,Ensembl/ensembl-funcgen,Ensembl/ensembl-funcgen