Small update to the Mattermost API

These changes make it possible to wrap multiple API requests in one
session.

lib/mattermost/client.rb

@@ -8,21 +8,31 @@ module Mattermost
       @user = user
     end
-    private
-
     def with_session(&blk)
       Mattermost::Session.new(user).with_session(&blk)
     end
-    def json_get(path, options = {})
+    private
+
+    # Should be used in a session manually
+    def get(session, path, options = {})
+      json_response session.get(path, options)
+    end
+
+    # Should be used in a session manually
+    def post(session, path, options = {})
+      json_response session.post(path, options)
+    end
+
+    def session_get(path, options = {})
       with_session do |session|
-        json_response session.get(path, options)
+        get(session, path, options)  
       end
     end
-    def json_post(path, options = {})
+    def session_post(path, options = {})
       with_session do |session|
-        json_response session.post(path, options)
+        post(session, path, options)
       end
     end

lib/mattermost/command.rb

 module Mattermost
   class Command < Client
     def create(params)
-      response = json_post("/api/v3/teams/#{params[:team_id]}/commands/create",
+      response = session_post("/api/v3/teams/#{params[:team_id]}/commands/create",
         body: params.to_json)
       response['token']

lib/mattermost/team.rb

 module Mattermost
   class Team < Client
     def all
-      json_get('/api/v3/teams/all')
+      session_get('/api/v3/teams/all')
     end
   end
 end