create bigscreen.d.ts
Merge pull request #1731 from dduugg/master

create bigscreen.d.ts
mongodb.ObjectID has optional constructor string
jQuery: JSDoc for unload, append, after, appendTo

Have improved typings where possible (less ...any[])
Merge pull request #1735 from ufon/master

mongodb.ObjectID has optional constructor string
Merge pull request #1736 from johnnyreilly/master

jQuery: JSDoc for unload, append, after, appendTo