renaming all rocket to rocketchat

LICENSE

client/lib/rocket.coffee

packages/rocketchat-file/file.server.coffee

packages/rocketchat-file/package.js

packages/rocketchat-lib/lib/callbacks.coffee

packages/rocketchat-lib/lib/core.coffee

packages/rocketchat-lib/package.js

packages/rocketchat-me/me.coffee

packages/rocketchat-me/package.js

public/landing/index.html

server/methods/sendMessage.coffee

server/methods/setAvatarFromService.coffee

server/startup/AvatarFileConfig.coffee

server/startup/migrations/v0.1.2.coffee