Redstone simulator now directly accesses cChunk

* Redstone simulator performance improvements
* Added return values to some functions
* Minor fixes
Anvil saver pads data to 4K boundaries.

Fixes #524.
Changed polarssl repo to point to cloned copy of polarssl
Merged change to enable testing to be disabled
This is confirmed upstream but is unlikely to get into the repository for
several weeks
Merge pull request #971 from worktycho/polarssl-local

Keep a cloned copy of polarssl
Fixed MSVC2013 compilation.
Removed the explicit copy constructor for cItem.

The compiler generates an implicit one with the same contents and warns about it. The function left in for ToLua to generate the binding for it.
Merge pull request #973 from mc-server/ItemNoCopyConstructor

Removed the explicit copy constructor for cItem.
Fixed warning in cBlockArea.
Fixed warning in cCallbackSslContext::cDataCallbacks.
Fixed warnings in FastNBT.
Fixed warnings in cBlockArea.
Fixed warning in BlockID.
Fixed warnings in cByteBuffer.
Fixed warnings in ClientHandle.
More ClientHandle fixes.
Fixed a warning in Noise.
Fixed warnings in Lua helpers.
Fixed warnings in ManualBindings.
HOOK_DISCONNECT has cClientHandle as its first parameter.

Ref.: #655.