Allow multiple rpc requests to be folded into one array

[Waldorf]

Accept an array of rpc request objects. eg.:

posting [
{
    "arguments": {
        "fields": [
            "name"
        ]
    }, 
    "method": "torrent-get", 
    "tag": 1
},
{
    "arguments": {
        "fields": [
	        "files", 
	        "priorities", 
	        "wanted"
        ],
	"ids": 1
    }, 
    "method": "torrent-get", 
    "tag": 2
}
]

The main drive behind this idea is that when you write a front-end, you'll likely want to make 2 kind of requests: one for the torrent list, and one for the inspector. otherwise you'll end up either requesting too much, or making two separate requests.

[charles]

No. Just make two separate requests.