Fix default in getAuthenticationUrl to pass if requested (#160)

* Fix default in getAuthenticationUrl to pass if requested

* Update version

Author: rogebrd

buildall.ps1

@@ -19,7 +19,7 @@ $nugetPath = "$nugetDir\nuget.exe"
 $nugetSpecPath = "$sourceDir\Dropbox.Api.nuspec"
 $docBuildPath = Resolve-Path "doc\StoneDocs.shfbproj"
 $majorVersion = "5.0"
-$releaseVersion = "5.1.0"
+$releaseVersion = "5.2.0"
 $assemblyInfoPath = "$sourceDir\AppProperties\AssemblyInfo.cs"
 $signKeyPath = "$sourceDir\dropbox_api_key.snk"
 $releaseNotes = @'

dropbox-sdk-dotnet/Dropbox.Api.Unit.Tests/UnitTests.cs

@@ -113,15 +113,8 @@ public void TestGetAuthorizationUri()
                                                     Assert.IsFalse(authUri.Contains("&force_reauthentication="));
                                                 }
 
-                                                if (tokenAccessType != TokenAccessType.Legacy)
-                                                {
-                                                    Assert.IsTrue(authUri.Contains("&token_access_type=" +
-                                                                                   tokenAccessType.ToString().ToLower()));
-                                                }
-                                                else
-                                                {
-                                                    Assert.IsFalse(authUri.Contains("&token_access_type="));
-                                                }
+                                                Assert.IsTrue(authUri.Contains("&token_access_type=" +
+                                                                                tokenAccessType.ToString().ToLower()));
 
                                                 if (scope != null)
                                                 {

dropbox-sdk-dotnet/Dropbox.Api/Dropbox.Api.nuspec

@@ -2,7 +2,7 @@
 <package>
   <metadata>
     <id>Dropbox.Api</id>
-    <version>5.1.0</version>
+    <version>5.2.0</version>
     <title>Dropbox v2 API</title>
     <authors>Dropbox</authors>
     <owners>Dropbox</owners>
@@ -32,4 +32,4 @@
     <file src="bin\Release\netstandard2.0\Dropbox.Api.dll" target="lib\netstandard2.0\Dropbox.Api.dll" />
     <file src="bin\Release\netstandard2.0\Dropbox.Api.xml" target="lib\netstandard2.0\Dropbox.Api.xml" />
   </files>
-</package>
+</package>

dropbox-sdk-dotnet/Dropbox.Api/DropboxOauth2Helper.cs

@@ -357,10 +357,8 @@ public static Uri GetAuthorizeUri(OAuthResponseType oauthResponseType, string cl
                 queryBuilder.Append("&force_reauthentication=true");
             }
 
-            if (tokenAccessType != TokenAccessType.Legacy)
-            {
-                queryBuilder.Append("&token_access_type=").Append(tokenAccessType.ToString().ToLower());
-            }
+            queryBuilder.Append("&token_access_type=").Append(tokenAccessType.ToString().ToLower());
+            
 
             if (scopeList != null)
             {