Results 10 issues of suhail

Sometimes we need to filter the category then get the annotated list.

Added light navbar design similar to https://trybootcamp.vitorfs.com navbar

while `yarn run dev` i got: ``` yarn run v1.22.11 $ nodemon --watch src && tslint-check [nodemon] 1.19.3 [nodemon] to restart at any time, enter `rs` [nodemon] watching dir(s): src/**/*...

This pull request is made with the help from the [pullrequest](https://github.com/sibtc/dependent-dropdown-example/pull/1) + don't make ajax request when no country is selected. + disable the city select while ajax request.

+ only make ajax request if some country is selected. [see pull request](https://github.com/sibtc/dependent-dropdown-example/pull/1): `if (countryId == 0) { //Not selected` ` $("#id_city").html("---------");` `} else` + disable the city select while...

Make this example working for django 1.5

1. Import students - add loading spinner to Save Button, 2. Ajax load Student datatable, 3. Save Subject Capital Case 4. Time table subject color white

+ take attendance of a perticular class by a teacher. + show attendance of a student in student user page.