nexus: Implement wifi scanner and fix a lot of bugs

Signed-off-by: San Mehat <san@google.com>
diff --git a/nexus/NexusCommand.cpp b/nexus/NexusCommand.cpp
index 090113c..92bb1c3 100644
--- a/nexus/NexusCommand.cpp
+++ b/nexus/NexusCommand.cpp
@@ -15,7 +15,6 @@
  */
 #include "NexusCommand.h"
 
-NexusCommand::NexusCommand(const char *cmd, NetworkManager *netman) :
+NexusCommand::NexusCommand(const char *cmd) :
               FrameworkCommand(cmd)  {
-    mNetman = netman;
 }