tengo

Revert "[OpJumpFalse, OpAndJump, OpOrJump, OpJump], these four instructions have been changed to use 4 bytes to avoid precision loss and panic when the number of instructions exceeds the maximum of 16 bits (65535) (#433)" (#436)

[OpJumpFalse, OpAndJump, OpOrJump, OpJump], these four instructions have been changed to use 4 bytes to avoid precision loss and panic when the number of instructions exceeds the maximum of 16 bits (65535) (#433)