Autogeneration of settings.ini and webadmin.ini

Fixes issue #75
Removed settings/webadmin.example.ini files

Additionally, added some default plugins to autogeneration. Also moved
nbt examples to docs/NBT Examples.
Implemented suggestions

- Reverted changes to WebAdmin.cpp IPv6 ports and Server.cpp server
description
+ Added default value explicitly for HardCore value
* Split PluginManager plugin defaults write to new function
- Removed a commented block from BlockTorch and...
+ Added g_BlockIsTorchPlaceable to Defines.h
Merge pull request #309 from mc-server/configautogen

Autogeneration of settings.ini and webadmin.ini