* [NOD-386] Extract net parsing functionality to a shared place.
* [NOD-386] Add extract ActiveNetParams to cmdconfig
* [NOD-386] Adding comments so go-vet won't shout at me
* [NOD-386] Rename package name to config
* [NOD-386] Rename commandConfig to configFlags
* [NOD-386] Rename function to ResolveNetwork
* [NOD-386] Fix renaming errors
* [NOD-386] Refactor network config to btcd level so APIserver and btcd could use it
* [NOD-386] Refactor network config to config package
* [NOD-386] Move ActiveNetParams to network section
* [NOD-386] Explictly return nil
* [NOD-386] Reuse activeNetParams from netwrok config
* [NOD-386] Set ActiveNetworkFlags instance to be global
* [NOD-386] Remove redundant newline
* [NOD-386] Init ActiveNetParams in address manager test
* [NOD-386] Add dnsseeder network config
* [NOD-386] Use ActiveConfig() method to access configuration
