Merge pull request #4 from openjaf/dev

improve format
Merge pull request #5 from openjaf/dev

Dev
change root
add format js
change the address to custom rails_admin gem
factorize module by_time
improve bytime
add optional filter
update by_time
update bytime
putting the heatmap mechanism
improve by_time
udpate
udpate
dealing with params
Merge pull request #6 from openjaf/custom_rails_admin

Custom rails admin