added new CMT data
fixes issue #156
refactor common functionality between export functions
show an "Endpoints" tab in the Dataset page
- fixes #158
Merge remote-tracking branch 'hmslincs/dave-sean-dev' into dave-sean-dev
Merge remote-tracking branch 'hmslincs/dev' into dave-sean-dev
addresses #159 update the front page, instructions
- added reference to chemical structure search
- changed the date