* push origin working_hours
* init ProjectManagement structure and Working Hours app.
* fix namespace bug.
* add server side models under 'pm_' namespace in database.
* add server side models, controllers and js collections, models
* fix require js errors.
* working time table html and css + js trigger events binding.
* commit most of the working duration display and logic.
* working hours duration modification. still problem with week changement
* correct date change bug. Improve project management. Add refresh render. Change day name array.
Merge branch 'develop' into Features/working_hours
Merge branch 'Features/working_hours' into develop