Replace deprecated Organization\Teams api calls

[lolos]

This Pull Request fixes the API calls for the functions:

• \Github\Api\Organization\Teams::show
• \Github\Api\Organization\Teams::update
• \Github\Api\Organization\Teams::remove
• \Github\Api\Organization\Teams::members
• \Github\Api\Organization\Teams::check
• \Github\Api\Organization\Teams::addMember
• \Github\Api\Organization\Teams::removeMember

based on the official Github's v3 API documentation:

• https://developer.github.com/v3/teams/
• https://developer.github.com/v3/teams/members/

since those functions incorrectly threw Github\Exception\RuntimeException: Not Found

[lolos]

@acrobat @Nyholm
any suggestion for the backward compatibility failed check?

Should I make $organization optional or create a PR to v3-dev branch?

[staabm]

any suggestion for the backward compatibility failed check?

we could add the organization as a optional argument, and also adjust the implementation to be BC compatibel, e.g.

instead of

    /**
     * @link https://developer.github.com/v3/teams/#list-teams
     */
    public function show($team, $organization)
    {
        return $this->get('/orgs/'.rawurlencode($organization).'/teams/'.rawurlencode($team));
    }

use

    /**
     * @link https://developer.github.com/v3/teams/#list-teams
     */
    public function show($team, $organization = null)
    {
        if ($organization) {
            return $this->get('/orgs/'.rawurlencode($organization).'/teams/'.rawurlencode($team));
        }
        return $this->get('/teams/'.rawurlencode($team));
    }

[GrahamCampbell]

Don't worry about StyleCI. Its fixes will be automatically applied when the PR is merged (assuming the package author has enabled that option).

[lolos]

@staabm I've changed it to your suggested way but keep in mind that in a next version, the $organization should be set as required since the api calls don't work without an organization set.

[acrobat]

@lolos Thanks for the PR, it already looks good! Just one comment about the current setup.

[acrobat]

Thanks @lolos! And congrats on your first contribution! 🎉