title: Implementing bump correctly?
body: <p>I keep getting linker errors when I try to set this up. I'm using this in my app delegate to configure everything</p>
  
  <pre><code>- (void) configureBump {
  [BumpClient configureWithAPIKey:@"your_api_key" andUserID:[[UIDevice currentDevice] name]];
  
  [[BumpClient sharedClient] setMatchBlock:^(BumpChannelID channel) { 
      NSLog(@"Matched with user: %@", [[BumpClient sharedClient] userIDForChannel:channel]); 
      [[BumpClient sharedClient] confirmMatch:YES onChannel:channel];
  }];
  
  [[BumpClient sharedClient] setChannelConfirmedBlock:^(BumpChannelID channel) {
      NSLog(@"Channel with %@ confirmed.", [[BumpClient sharedClient] userIDForChannel:channel]);
      [[BumpClient sharedClient] sendData:[[NSString stringWithFormat:@"Hello, world!"] dataUsingEncoding:NSUTF8StringEncoding]
                                toChannel:channel];
  }];
  
  [[BumpClient sharedClient] setDataReceivedBlock:^(BumpChannelID channel, NSData *data) {
      NSLog(@"Data received from %@: %@", 
            [[BumpClient sharedClient] userIDForChannel:channel], 
            [NSString stringWithCString:[data bytes] encoding:NSUTF8StringEncoding]);
  }];
  
  [[BumpClient sharedClient] setConnectionStateChangedBlock:^(BOOL connected) {
      if (connected) {
          NSLog(@"Bump connected...");
      } else {
          NSLog(@"Bump disconnected...");
      }
  }];
  
  [[BumpClient sharedClient] setBumpEventBlock:^(bump_event event) {
      switch(event) {
          case BUMP_EVENT_BUMP:
              NSLog(@"Bump detected.");
              break;
          case BUMP_EVENT_NO_MATCH:
              NSLog(@"No match.");
              break;
      }
  }];
  }
  </code></pre>
  
  <p>The errors I get are the following:</p>
  
  <pre><code>Undefined symbols for architecture i386:
  "_CFHostCreateWithName", referenced from:
    -[BumpClient ipStringForHost] in libBump.a(BumpClient-4A2ADD525826BE6B.o)
  "_CFHostStartInfoResolution", referenced from:
    -[BumpClient ipStringForHost] in libBump.a(BumpClient-4A2ADD525826BE6B.o)
  "_CFHostGetAddressing", referenced from:
    -[BumpClient ipStringForHost] in libBump.a(BumpClient-4A2ADD525826BE6B.o)
  "_CFHostGetNames", referenced from:
    -[BumpClient ipStringForHost] in libBump.a(BumpClient-4A2ADD525826BE6B.o)
  "_OBJC_CLASS_$_CLLocationManager", referenced from:
    objc-class-ref in libBump.a(BumpClient-4A2ADD525826BE6B.o)
  "_kCLLocationAccuracyBest", referenced from:
    -[BumpClient init] in libBump.a(BumpClient-4A2ADD525826BE6B.o)
  "_AudioServicesCreateSystemSoundID", referenced from:
    -[BumpDetector init] in libBump.a(BumpDetector.o)
  "_AudioServicesPlaySystemSound", referenced from:
    -[BumpDetector init] in libBump.a(BumpDetector.o)
    -[BumpDetector playBumpSound] in libBump.a(BumpDetector.o)
  ld: symbol(s) not found for architecture i386
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  </code></pre>
  
  <p>I have libBump.a and BumpClient.H and check the frameworks being link, libBump is included</p>