GET /links.json | /links/{link_id}.json
tw.links.get(link_id)
POST /projects/{project_id}/links.json
tw.links.create(project_id, body)
tw.links.update(link_id, body)
tw.links.delete(link_id)
GET /links/{link_id}/comments.json
tw.links.getComments(link_id, query_string)
POST /links/{link_id}/comments.json
tw.links.createComment(link_id, body)
GET /links/{link_id}/tags.json
tw.links.getTags(link_id, query_string)
PUT /links/{link_id}/tags.json
tw.links.updateTag(link_id, body)