Refactor UtilServerTs() -> UtilTsMillis().

The old name was a remnant from when Cytoplasm was still a part of
Telodendria, a *server*. Since Cytoplasm is no longer strictly a server
support library, this function name doesn't make sense.

src/Cron.c

@@ -85,7 +85,7 @@ CronThread(void *args)
 
         pthread_mutex_lock(&cron->lock);
 
-        ts = UtilServerTs();
+        ts = UtilTsMillis();
 
         for (i = 0; i < ArraySize(cron->jobs); i++)
         {
@@ -103,7 +103,7 @@ CronThread(void *args)
                 Free(job);
             }
         }
-        te = UtilServerTs();
+        te = UtilTsMillis();
 
         pthread_mutex_unlock(&cron->lock);
 

src/Db.c

@@ -587,7 +587,7 @@ DbLockFromArr(Db * db, Array * args)
 
         if (db->cache)
         {
-            ref->ts = UtilServerTs();
+            ref->ts = UtilTsMillis();
             ref->size = DbComputeSize(ref->json);
             HashMapSet(db->cache, hash, ref);
             db->cacheSize += ref->size;

src/HttpServer.c

@@ -488,7 +488,7 @@ HttpServerWorkerThread(void *args)
          * TODO: Instead of looping, abort immediately, and place the request
          * at the end of the queue.
          */
-        firstRead = UtilServerTs();
+        firstRead = UtilTsMillis();
         while ((lineLen = UtilGetLine(&line, &lineSize, fp)) == -1
                && errno == EAGAIN)
         {
@@ -496,7 +496,7 @@ HttpServerWorkerThread(void *args)
 
             // If the server is stopped, or it's been a while, just
             // give up so we aren't wasting a thread on this client.
-            if (server->stop || (UtilServerTs() - firstRead) > (1000 * 30))
+            if (server->stop || (UtilTsMillis() - firstRead) > (1000 * 30))
             {
                 goto finish;
             }

src/Rand.c

@@ -141,7 +141,7 @@ RandIntN(uint32_t *buf, size_t size, uint32_t max)
     if (!state)
     {
         /* Generate a seed from the system time, PID, and TID */
-        uint64_t ts = UtilServerTs();
+        uint64_t ts = UtilTsMillis();
         uint32_t seed = ts ^ getpid() ^ (unsigned long) pthread_self();
 
         state = Malloc(sizeof(RandState));

src/Util.c

@@ -49,7 +49,7 @@
 #endif
 
 uint64_t
-UtilServerTs(void)
+UtilTsMillis(void)
 {
     struct timeval tv;
 

src/include/Util.h

@@ -60,7 +60,7 @@
  * overflow before it even gets to this function, which will cause this
  * function to produce unexpected results.
  */
-extern uint64_t UtilServerTs(void);
+extern uint64_t UtilTsMillis(void);
 
 /**
  * Use