Merge branch 'develop' into conversion

cmd/ethtest/main.go

state/dump.go

state/state_test.go

state/statedb.go

tests/files/BlockTests/bcInvalidHeaderTest.json

tests/files/BlockTests/bcInvalidRLPTest.json

tests/files/BlockTests/bcJS_API_Test.json

tests/files/BlockTests/bcUncleTest.json

tests/files/BlockTests/bcValidBlockTest.json

tests/files/StateTests/RandomTests/st201503181220CPPJIT.json

tests/files/StateTests/RandomTests/st201503181223GO.json

tests/files/StateTests/RandomTests/st201503181225GO.json

tests/files/StateTests/RandomTests/st201503181226CPPJIT.json

tests/files/StateTests/RandomTests/st201503181227CPPJIT.json

tests/files/StateTests/RandomTests/st201503181227GO.json

tests/files/StateTests/RandomTests/st201503181229GO.json

tests/files/StateTests/RandomTests/st201503181230CPPJIT.json

tests/files/StateTests/RandomTests/st201503181230GO.json

tests/files/StateTests/RandomTests/st201503181231GO.json

tests/files/StateTests/RandomTests/st201503181232CPPJIT.json