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.
Merge branch 'master' into SslWebAdmin