Update linodeius.js

[NTShop]

Adding the ability to pass parameters into linode API calls.

[NTShop]

I discovered that something like cloning a node requires specific parameters, but when I try to pass some in there go unused. For example this doesn't work, the API call fails saying that LINODEID is required. With the change I made in the pull request it appears to work.

linode.linode.clone( { 'LINODEID':'123', 'DATACENTER':2, 'PLANID':1 } ).then( function( res ) {
    // do something here
})