Manual merge of jaromil's source tree reorg commit.

Conflicts:
	src/sha256.cpp

diff --cc doc/build-unix.txt
Simple merge

diff --cc share/setup.nsi
Simple merge

diff --cc share/uiproject.fbp
Simple merge

diff --cc src/db.cpp
Simple merge

diff --cc src/init.cpp
Simple merge

diff --cc src/main.cpp
Simple merge

diff --cc src/main.h
Simple merge

diff --cc src/makefile.unix
Simple merge

diff --cc src/rpc.cpp
Simple merge

diff --cc src/serialize.h
Simple merge

diff --cc src/ui.cpp
Simple merge

diff --cc src/ui.h
Simple merge

diff --cc src/uibase.cpp
Simple merge

diff --cc src/uibase.h
Simple merge