Prune provably-unspendable outputs
Squashed 'src/leveldb/' changes from be1b0ff..936b461

936b461 Merge upstream LevelDB 1.13.
748539c LevelDB 1.13

git-subtree-dir: src/leveldb
git-subtree-split: 936b4613ea4551992e6096b1e05eeefc09a20e3b
Merge src/leveldb changes for LevelDB 1.13
[wallet] Consider generated coins mature at COINBASE_MATURITY+1

We're not seeing large reorgs that would justify waiting a large
 amount past the rule required maturity, and the extra three
 hours is just a nuisance. Take one more block to at least give
 the 100th block time to propagate.
[raw] reject insanely high fees by default in sendrawtransaction

There have been several incidents where mainnet experimentation with
 raw transactions  resulted in insane fees.  This is hard to prevent
 in the raw transaction api because the inputs may not be known.
 Since sending doesn't work if the inputs aren't known, we can catch
 it there.

This rejects fees > than 10000 * nMinRelayTxFee or 1 BTC with the
 defaults and can be overridden with a bool at the rpc.
improve wallet load time by removing duplicated calls to EC_KEY_check_key and adding a hash for vchPubKey/vchPrivKey entries in wallet.dat

backwards compatible with previous wallet.dat format
verify vchPubKey matches calculated public key unless fSkipCheck is set
Rename -tor to -onion to better reflect what it does.

I've seen users confused multiple times thinking they
 should be using -tor to set their tor proxy and then
 finding in horror that they were still connecting to
 the IPv4 internet.

Even Jeff guesses wrong about what the knob does, so
 I think we should rename it. This leaves the old
 knob working, we can pull it out completely in a
 later release.
Move Parse{Hash|Hex} to be usable by all RPC code
Add RPC call decodescript
Make validateaddress provide redeemScript
Merge pull request #2830 from petertodd/p2sh-rpc

P2SH related RPC improvements
autotools: rearrange qt sources to make them more flexible

Add BITCOIN_MM QR_CPP and BITCOIN_CPP in order to better accomodate complicated
targets. This is a no-op change.
autotools: teach extract_strings_qt.py to respect the XGETTEXT env variable
Bitcoin-Qt: BitcoinGUI::message() updates/fixes

- ensure message boxes are shown in center of our main window, not
  centered on the users desktop
- always prefer user supplied titles for message boxes over the functions
  defaults (fixes a bug, where transaction info messages did not contain
  information, if it was incoming or outgoing)
autotools: add translate target for qt translations
autotools: check for lupdate/xgettext
autotools: update translation docs
Merge pull request #2996 from theuni/qt-translation

Update translation process for autotools
More fixes for blockchain corruption on OSX.

As we'd previously learned, OSX's fsync is a data eating lie.

Since 0.8.4 we're still getting some reports of disk corruption on
 OSX but now all of it looks like the block files have gotten out of
 sync with the database. It turns out that we were still using fsync()
 on the block files, so this isn't surprising.