Added NO_SPARKLE environment ot preprocessor for customization

MacPass.xcodeproj/project.pbxproj

@@ -2243,6 +2243,7 @@
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = (
+					"$(NO_SPARKLE)",
 					"DEBUG=1",
 					"$(inherited)",
 				);
@@ -2285,6 +2286,7 @@
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_ENABLE_OBJC_EXCEPTIONS = YES;
 				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_PREPROCESSOR_DEFINITIONS = "$(NO_SPARKLE)";
 				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;

MacPass/MPAppDelegate.m

@@ -157,7 +157,7 @@ NSString *const MPDidChangeStoredKeyFilesSettings = @"com.hicknhack.macpass.MPDi
 }
 
 - (void)applicationDidFinishLaunching:(NSNotification *)notification {
-#if defined(NOSPARKLE)
+#if defined(NO_SPARKLE)
   NSLog(@"Sparkle explicitly disabled!!!");
 #endif
   /* Daemon instanziieren */
@@ -165,7 +165,7 @@ NSString *const MPDidChangeStoredKeyFilesSettings = @"com.hicknhack.macpass.MPDi
   [MPAutotypeDaemon defaultDaemon];
   /* Create Plugin Manager */
   [MPPluginHost sharedHost];
-#if !defined(DEBUG) && !defined(NOSPARKLE)
+#if !defined(DEBUG) && !defined(NO_SPARKLE)
   /* Disable updates if in debug or nosparkle  */
   [SUUpdater sharedUpdater];
 #endif
@@ -234,7 +234,7 @@ NSString *const MPDidChangeStoredKeyFilesSettings = @"com.hicknhack.macpass.MPDi
 }
 
 - (void)checkForUpdates:(id)sender {
-#if defined(DEBUG) || defined(NOSPARKLE)
+#if defined(DEBUG) || defined(NO_SPARKLE)
   NSAlert *alert = [[NSAlert alloc] init];
   alert.messageText = @"Updates are disabled!";
   alert.informativeText = [NSString stringWithFormat:@"Sparkle updates are disabled for this build of %@!", NSApp.applicationName];

MacPass/MPUpdateSettingsController.m

@@ -35,7 +35,7 @@
 
 - (void)awakeFromNib {
 /* only enable bindings to settings in release mode */
-#if defined(DEBUG) || defined(NOSPARKLE)
+#if defined(DEBUG) || defined(NO_SPARKLE)
   self.checkIntervallPopupButton.enabled = NO;
   self.automaticallyCheckForUpdatesCheckButton.enabled = NO;
 #else