Remove leveldb in preparation for git-subtree
Squashed 'src/leveldb/' content from commit aca1ffc

git-subtree-dir: src/leveldb
git-subtree-split: aca1ffc4b65be5e099b2088c6e6a308d69e1ad73
Merge commit 'c25e98186d0f716451ef000e55646d25e014f573' as 'src/leveldb'
Merge pull request #2616 from vinniefalco/leveldb-as-subtree

Leveldb as subtree
Added NSHighResolutionCapable flag to Info.plist for better font rendering on Retina displays.
Merge pull request #2722 from trapp/master

Add NSHighResolutionCapable flag to Info.plist for better font rendering on Retina displays
Qt5 compatibility

This commit squashes all the changes in the Qt5 branch
relative to master.

Backward compatibility with Qt4 is retained.

Original authors:

- Philip Kaufmann <phil.kaufmann@t-online.de>
- Jonas Schnelli <jonas.schnelli@include7.ch>
remove GetBoolArg() fDefault parameter defaulting to false

- explicitly set the default of all GetBoolArg() calls
- rework getarg_test.cpp and util_tests.cpp to cover this change
- some indentation fixes
- move macdockiconhandler.h include in bitcoin.cpp to the "our headers"
  section
Merge pull request #2721 from laanwj/2013_05_qt5

Qt5 compatibility
Merge pull request #2588 from Diapolo/GetBoolArg

remove GetBoolArg() fDefault parameter defaulting to false
Bitcoin-Qt: setup testnet GUI directly

- this directly sets up all GUI elements that have testnet special-casing
  without first setting up main net stuff and changing afterwards (titles,
  icons etc.)
- also fixes 2 wrong icons shown during testnet usage on our toolbar
Merge pull request #2672 from Diapolo/Qt_testnet

Bitcoin-Qt: setup testnet GUI directly
Add new data-driven test-case.
MaxOSX: settings fixes (#2371)

- Launch-At-Startup implementation for mac
- Remove "Window" tab in settings

Signed-off-by: Jonas Schnelli <jonas.schnelli@include7.ch>
Bitcoin-Qt: harmonize 2 setClientModel() functions

- harmonize BitcoinGUI::setClientModel() and RPCConsole::setClientModel()
- now RPCConsole::setClientModel() also includes a direct call to
  setNumBlocks()
Merge branch 'master' of git://github.com/bitcoin/bitcoin into prefsFix

Signed-off-by: Jonas Schnelli <jonas.schnelli@include7.ch>

Conflicts:
	bitcoin-qt.pro
Merge pull request #2727 from TheBlueMatt/master

One more data-driven test-case
Merge pull request #2613 from jonasschnelli/prefsFix

MaxOSX: settings fixes (#2371)
osx: fix bitcoin-qt startup crash when clicking dock icon

Crash probably introduced by 4d17a1b0.
Inialize the window to NULL and verify it before use.
Merge pull request #2741 from theuni/fix-osx-dock

osx: fix bitcoin-qt startup crash when clicking dock icon