Properly initialize CWallet::nTimeFirstKey
Merge pull request #4273

91855f2 Properly initialize CWallet::nTimeFirstKey (tm314159)
small cleanup of net

- remove an unneded else in ConnectNode()
- make 0 a double and change to 0.0 in ConnectNode()
- rename strDest to pszDest in OpenNetworkConnection()
- convert an if into an else if in OpenNetworkConnection()
- remove an unneded call to our REF() macro in BindListenPort()
- small style cleanups and removal of unneeded new-lines