Swap order of semver comparison when returning search results

This should fix a regression introduced in this commit series.

src/controllers/krate/search.rs

@@ -181,7 +181,7 @@ pub fn search(req: &mut Request) -> CargoResult<Response> {
         .map(|versions| {
             versions
                 .into_iter()
-                .max_by(Version::semantically_newest_first)
+                .max_by(Version::semver_cmp)
                 .unwrap()
         })
         .collect::<Vec<_>>();

src/version/mod.rs

@@ -175,8 +175,8 @@ impl Version {
     }
 
     /// Orders SemVer numbers so that "higher" version numbers appear first.
-    pub fn semantically_newest_first(a: &Self, b: &Self) -> ::std::cmp::Ordering {
-        b.num.cmp(&a.num)
+    pub fn semver_cmp(a: &Self, b: &Self) -> ::std::cmp::Ordering {
+        a.num.cmp(&b.num)
     }
 }