Lightfield grid: Also visualize the lens circle in yellow
Add support for lens size online adjustment and database-based override

autorectify-independent can store overriding maxu in the database.
Mongo database dump update - maxu, reautorectification, new videos

Update the images table with

(i) maxu values as observed by manual inspection

(ii) auto-rectification iterated to satisfactory state based on
manual inspection

(iii) new videos - punc31_gCAMP5_td_video{26-36}* - we forgot about
these when building the database

(iv) lightfield 19_4-14_23 was not in any folder

((i) and (ii) does not concern most non-worm images, I've just
ignored those except for the drosophila shots)
Add support for backbone visualization

Backbone data expected as *-backbone.json, as generated by pose_extraction:pasky:/tsv2json.sh
Fixed annotation bug
Merge branch 'master' into production

Conflicts:
	meteor/client/compatibility/lf-render.js