(#471) - bulkDocs errors inconsistency

Return with the first error when some documents have invalid ids.

src/adapters/pouch.idb.js

@@ -167,6 +167,13 @@ var IdbPouch = function(opts, callback) {
       return newDoc;
     });
 
+    var docInfoErrors = docInfos.filter(function(docInfo) {
+      return docInfo.error;
+    });
+    if (docInfoErrors.length) {
+      return call(callback, docInfoErrors[0]);
+    }
+
     var results = [];
     var docs = [];
 

src/adapters/pouch.leveldb.js

@@ -350,6 +350,14 @@ LevelPouch = module.exports = function(opts, callback) {
       return newDoc;
     });
 
+    var infoErrors = info.filter(function(doc) {
+      return doc.error;
+    });
+    if (infoErrors.length) {
+      return call(callback, infoErrors[0]);
+    }
+
+
     // group multiple edits to the same document
     info.forEach(function(info) {
       if (info.error) {

src/adapters/pouch.websql.js

@@ -123,6 +123,13 @@ var webSqlPouch = function(opts, callback) {
       return newDoc;
     });
 
+    var docInfoErrors = docInfos.filter(function(docInfo) {
+      return docInfo.error;
+    });
+    if (docInfoErrors.length) {
+      return call(callback, docInfoErrors[0]);
+    }
+
     var tx;
     var results = [];
     var docs = [];