Added --nospendzeroconfchange to match Bitcoin-Qt
winxp build fix
xp and icon support
open_win32 fix
added the 256x256 icon back, looks better than 64x64
ledger entry for comments fix
compile fix
merging and making sure it build on windows
get closer to the BDM.queued() function working
Merge remote-tracking branch 'origin/0.91-dev' into charles-refactor-blockchain

Conflicts:
	armoryengine/PyBtcWallet.py
	cppForSwig/BlockUtils.cpp
	cppForSwig/BlockUtils.h
new technique for queueing things onto the BDM thread.