Discourage fee sniping with nLockTime
Fix IsInitialBlockDownload which was broken by headers first.
[Wallet] Reduce minTxFee for transaction creation to 1000 satoshis
bitcoin-tx: Add the "-txid" option. Also add the hex-encoded transaction to the JSON output as the "hex" property.
Add a locking mechanism to IsInitialBlockDownload to ensure it never goes from false to true.
Qt: new icons

- flat and b/w icons seems to be the new trend
- support for HiDPI/retina
- change icon sizes
- fix assets-attribution.md
- removed unused icons
Reset setBlockIndexCandidates once block index db loaded
[Qt] the RPC Console should be a QWidget to make window more independent

- fix issue #5254
Win32: log addresses found in Discover() calls
Win32: change buffer size for gethotsname in Discover()

- 256 byte is the maximum, as per
  http://msdn.microsoft.com/en-us/library/windows/desktop/ms738527%28v=vs.85%29.aspx
change nSubsidy's type from int64_t to CAmount
Make PruneBlockIndexCandidates safer
Split up crypto/sha2
Add HMAC-SHA256
Add the RFC6979 PRNG
Deterministic signing
Header define style cleanups
Fixed mempool sync after sending a transaction
libbitcoinconsensus: Add pkg-config support
Check pindexBestForkBase for null