Fix linux-mingw makefile's leveldb build by setting CXX.
Upgrade to Qt 4.8.3 (because 4.8.2 was removed from qt repos?)
Add missing calls to ranlib in Windows makefiles
Merge pull request #1966 from TheBlueMatt/leveldbmakefile

Build script fixes
Merge branch 'rawtx_p2sh'
Merge pull request #1935 from runeksvendsen/master

Add script to contrib/ that verifies authenticity of binaries hosted on SourceForge
Undo bad gitian update.
Merge pull request #1967 from TheBlueMatt/leveldbmakefile

Undo bad gitian update.
Merge pull request #1963 from sipa/bugfix_nonewblock

Bugfix: don't crash by trying to write unchanged best block
Merge pull request #1932 from Diapolo/thread_printf

fix some thread related log messages
Bitcoin-Qt: use statustips in addition to tooltips

- add setStatusTip() in addition to setTooltip() where it makes sense
- add only setStatusTip() if GUI element is only used in main- or tray menu

- add an event filter on our BitcoinGUI object to prevent garbelled text
  on the status bar, which happens when we use it for e.g. displaying
  block-sync state and then a QEvent::StatusTip wants to write own text to it

- remove a double translation of "Bitcoin client"
Merge pull request #1923 from Diapolo/Qt_tooltips

Bitcoin-Qt: use statustips in addition to tooltips
Fixed making leveldb with custom CFLAGS/CXXFLAGS in the same way as makefile.unix
Bugfix: do not keep relaying spent wallet transactions

The original test (checking whether the transaction occurs in the
txindex) is not usable anymore, as it will miss anything already
fully spent. However, as merkle transactions (and by extension,
wallet transactions) track which block they were last seen being
included in, we can use that to determine the need for
rebroadcasting.
Add virtual destructor to CCoinsView
Merge pull request #1972 from sipa/virtcoinsview

Add virtual destructor to CCoinsView
Comments for constants
Add -walletnotify to call an external script on wallet transactions
Merge pull request #1973 from sipa/comconst

Comments for constants
Merge pull request #1971 from sipa/bugfix_norelayspent

Bugfix: do not keep relaying spent wallet transactions