API Change: search sort

[clintongormley]

Instead of specifying sort order like this:
"sort" : [
"name",
{
"last_modified" : {
"reverse" : 1
}
}
],

What about like this?
"sort" : [
"name",
{"last_modified" : "desc"}
],

or

"sort" : [
  {"name" : "asc"},
  {"last_modified" : "desc"}
],

When you sort on score, reverse: true implies asc, but for everything else, reverse: true implies desc. So why not make it unambiguous?

[kimchy]

Going to support it as well as the old way

[kimchy]

implemented

[clintongormley]

Tested++