Optimizations

This add:

- manage local js with connect-assets, I tried to use it also to manage habitrpg-shared.js but I wasn't able to, anyway we should give a look to it because it's not minimized together with some other script from `bower_components`
- remove lodash and moment, as discussed in #1414, before merge HabitRPG/habitrpg-shared#17

This time I've tested it and it works!