update checkstyle, remove deleted entry
Fixed GFF3 export in region search caused by c8a3fb2. Refs #756
Merge pull request #758 from intermine/i756

Fixed GFF3 export in region search caused by c8a3fb2. Refs #756
Updated header links - about, cite
Merge commit 'd5ee37dffbb68bdba9405186ca45339b33e29261'
add imports. Fixes #740