patching variation database to latest schema
Merge branch 'master' of https://github.com/Ensembl/ensembl-rest
always make sure default charset is latin1
any other default will cause keys to be too big
updated display column for variation_feature
Added support for regulatory endpoint. untested
Updated group to Regulation
Added support for motif and segmentation features to overlap endpoint
Added segmentation and motif to allowed_features config
Added cell_type param support to Regulatory endpoint
Adding test suite, debugging funcgen endpoints