* Revert "Add missing ListOptions to ListLabels (#337)"

This reverts commit ad922c4d.

* Revert "Added Confidential Issue Hook (#343)"

This reverts commit 79bdeb00.

Fixes : #336

* Fixes #230: add get users (for admins)

see // https://docs.gitlab.com/ce/api/users.html#for-admins

* Fix issue #230

Partially using @michaellihs his earlier work. Updated things to match the currently available docs for this call.

* Add missing pagination option to couple of endpoints

* Make all ListOption uses consistent

* Add 1.10.x to travis.yml

* Add master to travis, but allow it to fail

* Add an implementation of ListBoards

* remove reference to go-gitlab

* Add API for a single Board and a single Board List

* Add `id` `subscribed` and `priority` properties to Label struct

* remove useless override of `c.Issues` add in a wrong rebase

* Add all Available API on Boards for GitLab

* Fix golint warning about exported methods

* Fix typo (+1 squashed commits)

Squashed commits:

[89721e6] typo fix

* golint warns for fields named ...Id and suggests renaming to ...ID same for API

* Move events to event_type file

* Add user contribution events API

* impl DisableProjectRunner

* impl ListRunnersJobs

* impl RemoveARunner

* impl UpdateRunnersDetails

* requested changes

* renamed ListRunnersJobs to ListRunnerJobs

* Added function to get all users from a specific project

* Added function to get all users from a specific project - Pull Request changes

* Added function to get all users from a specific project

* added endpoint for retrieving subgroups for a group

* gofmt

* moved subgroup into the groups object

* removed concept of subgroup and using group instead

Not all methods are implemented, only the ones which I needed and verified.

* Snippet: add Explore API call

See https://docs.gitlab.com/ce/api/snippets.html#explore-all-public-snippets

* Snippet: add missing raw_url property

* Some renames for consistency

* updated Settings and UpdateSettingsOptions