rename _markVerified() to _markInStore()

This avoids confusion with setting an index in _verified[] to true.

lib/torrent.js

@@ -548,7 +548,7 @@ Torrent.prototype._onMetadata = function (metadata) {
 
       if (unchanged) {
         for (var index = 0; index < self.pieces.length; index++) {
-          self._markVerified(index)
+          self._markInStore(index)
         }
       } else {
         self._verifyPieces()
@@ -626,7 +626,7 @@ Torrent.prototype._verify = function (index, cb) {
 
       if (hash === self._hashes[index]) {
         self._debug('piece verified %s', index)
-        self._markVerified(index)
+        self._markInStore(index)
 
         self.wires.forEach(function (wire) {
           wire.have(index)
@@ -649,7 +649,7 @@ Torrent.prototype._verify = function (index, cb) {
   })
 }
 
-Torrent.prototype._markVerified = function (index) {
+Torrent.prototype._markInStore = function (index) {
   this.pieces[index] = null
   this._reservations[index] = null
   this.bitfield.set(index, true)