Prune provably-unspendable outputs
[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.
Add getnetworkhashps to get the calculated network hashrate
Update contrib/debian: proper desktop category and update changelog
autotools: fix subdir m4 check, never let it return -I

If BDB_CPPFLAGS returns only "-I", the next argument sent to the preprocessor
is treated as a path. There are 2 fixes here:

1. Check in CPPFLAGS, as a user might have manually passed a path to check.
2. Ensure the value is not empty before setting BDB_CPPFLAGS to "-I value"
autotools: fix the Makefile.include to be safely included anywhere.

This way we can reuse rules rather than duplicating them.
win32: add version info to bitcoind.exe

TODO: Add icon info
win32: only check for windres for win32, and fail if missing
Use 'low S' as malleability breaker rather than 'even S'
Add michagogo to gitian download scripts
Adjust weight for michagogo in gitian download scripts

Following a discussion in #bitcoin-dev, around
19:00 UTC, 20132209
Merge pull request #3023 from Michagogo/pgp

Add michagogo to gitian download scripts
Merge pull request #3016 from sipa/lows

Use 'low S' as malleability breaker rather than 'even S'
Merge pull request #2791 from sipa/proveprune

Prune provably-unspendable outputs
Skip unspendable outputs in consistency check
GUI: fix sendcoinsdialog/sendcoinsentry
Merge pull request #3026 from sipa/checkunspend

Skip unspendable outputs in consistency check
internal miner: move 2 globals from main to miner

- moves 2 global variables from main.cpp/h to miner.cpp/h
- also removes 2 unneded includes in miner.cpp, that come from miner.h
  already
build: add libcrypt32 dep for new mingw. Also ensure that libgcc/libstdc++ are static-linked regardless of the toolchain config
Removes obselete HomeBrew patches