Changes FindManyAsync, now the parameter is IEnumberable.

Adds FindManyAsync to the README.
Adds FindManyAsync documentation.

Author: matteobortolazzo

README.md

@@ -205,6 +205,7 @@ await rebels.CreateOrUpdateAsync(rebel);
 await rebels.DeleteAsync(rebel);
 var rebel = await rebels.FindAsync(id);
 var rebel = await rebels.FindAsync(id, withConflicts: true);
+var rebels = await rebels.FindManyAsync(ids);
 // Bulk
 await rebels.CreateOrUpdateRangeAsync(moreRebels);
 // Utils

src/CouchDB.Driver/CouchDatabase.cs

@@ -236,7 +236,12 @@ public async Task<TSource> FindAsync(string docId, bool withConflicts = false)
             }
         }
 
-        public async Task<List<TSource>> FindManyAsync(string[] docIds)
+        /// <summary>
+        /// Finds all documents with given IDs.
+        /// </summary>
+        /// <param name="docIds">The collection of documents IDs.</param>
+        /// <returns></returns>
+        public async Task<List<TSource>> FindManyAsync(IEnumerable<string> docIds)
         {
             var bulkGetResult = await NewRequest()
                 .AppendPathSegment("_bulk_get")

src/CouchDB.Driver/Helpers/MicrosecondEpochConverter.cs

@@ -8,17 +8,17 @@ namespace CouchDB.Driver.Helpers
     internal class MicrosecondEpochConverter : DateTimeConverterBase
 #pragma warning restore CA1812 // Avoid uninstantiated internal classes
     {
-        private static readonly DateTime Epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+        private static readonly DateTime _epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
 
         public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
         {
-            writer.WriteRawValue(((DateTime)value - Epoch).TotalMilliseconds + "000");
+            writer.WriteRawValue(((DateTime)value - _epoch).TotalMilliseconds + "000");
         }
 
         public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
         {
             if (reader.Value == null) { return null; }
-            return Epoch.AddMilliseconds((long)reader.Value / 1000d);
+            return _epoch.AddMilliseconds((long)reader.Value / 1000d);
         }
     }
 }