Added unique properties model using field name
Debug empty value
Merge branch 'develop' of github.com:jplusplus/detective.io into develop
Bumped to 1.5.3
Merge branch 'release/1.5.3'
Merge tag 'v1.5.3' into develop

1.5.3
start
Don't compress assets during developement
Global visualization : api created but unusable yet
Global Graph Api :  edges provided
General graph : visualization shown
General Graph Navigation : checkbox connected to the controller
General Graph Navigation : filters working
merge with develop
router updated
typo fixed
get_leafts_and_edges created in app.detective.utils, get_graph from summary and individuals factorised
edouard added as admin
general-graph-navigation : loading & colors
transition