WIP: Paginate Gitlab issues requests

Closed username-removed-422827 requested to merge mlavault/kanban:pagination into master

It should add pagination to issue request.

I'm not sure how to test it, could you provide more informations in your CONTRIBUTING.md ? make build give me this error :

Loading "sass.js" tasks...ERROR
>> Error: The `libsass` binding was not found in /go/src/gitlab.com/leanlabsio/kanban/node_modules/grunt-sass/node_modules/node-sass/vendor/linux-x64-14/binding.node
>> This usually happens because your node version has changed.
>> Run `npm rebuild node-sass` to build the binding for your current node version.
Warning: Task "sass" not found. Use --force to continue.

Aborted due to warnings.
Makefile:31: recipe for target 'build' failed
make: *** [build] Error 3