ios fixes

experimental/iOSSampleApp/Shared/skia_ios.mm

 #import <UIKit/UIKit.h>
 #include "SkApplication.h"
 
-extern void save_args(int argc, char *argv[]);
+extern bool set_cmd_line_args(int argc, char *argv[], const char* dir);
 
 int main(int argc, char *argv[]) {
     signal(SIGPIPE, SIG_IGN);
     NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
     application_init();
-    save_args(argc, argv);
-    int retVal = UIApplicationMain(argc, argv, nil, nil);
+    // Identify the documents directory
+    NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
+    NSString *docsDir = [dirPaths objectAtIndex:0];
+    const char *d = [docsDir UTF8String];
+
+    bool ranCommand = set_cmd_line_args(argc, argv, d);
+    int retVal = ranCommand ? 0 : UIApplicationMain(argc, argv, nil, nil);
     application_term();
     [pool release];
     return retVal;
 }