Channel settings: change name, topic, type

client/methods/saveRoomName.coffee

client/views/app/room.coffee

client/views/app/room.html

i18n/en.i18n.json

...chat-channel-settings/client/views/channelSettings.coffee

...etchat-channel-settings/client/views/channelSettings.html

packages/rocketchat-channel-settings/i18n/en.i18n.json

packages/rocketchat-channel-settings/package.js

...-channel-settings/server/functions/changeRoomTopic.coffee

...t-channel-settings/server/functions/changeRoomType.coffee

...tchat-channel-settings/server/methods/saveRoomName.coffee

...t-channel-settings/server/methods/saveRoomSettings.coffee

packages/rocketchat-lib/server/models/Rooms.coffee

packages/rocketchat-theme/assets/stylesheets/base.less

server/startup/roomPublishes.coffee