Merge pull request #2076 from RocketChat/migrations

.meteor/packages

.meteor/versions

packages/rocketchat-migrations/migrations.js

packages/rocketchat-migrations/package.js

packages/rocketchat-version/plugin/compile-version.coffee

server/methods/migrate.coffee

server/startup/migrations/v1.coffee

server/startup/migrations/v10.coffee

server/startup/migrations/v11.coffee

server/startup/migrations/v12.coffee

server/startup/migrations/v13.coffee

server/startup/migrations/v14.coffee

server/startup/migrations/v15.coffee

server/startup/migrations/v16.coffee

server/startup/migrations/v17.coffee

server/startup/migrations/v18.coffee

server/startup/migrations/v19.coffee

server/startup/migrations/v2.coffee

server/startup/migrations/v20.coffee

server/startup/migrations/v21.coffee