All laws now in force, which are not in conflict or inconsistent with this Constitution, shall continue in force until amended or repealed by the General Assembly, and all laws exempting property from sale on execution, or by decree of a court, which were in force at the time of the adoption of the Constitution of 1868, shall remain in force with regard to contracts made before that time. Until otherwise provided by law no distinction shall exist between sealed and unsealed instruments, concerning contracts between individuals, executed since the adoption of the Constitution of 1868; Provided: That the statutes of limitation with regard to sealed and unsealed instruments in force at that time, continue to apply to all instruments afterward executed, and until altered or repealed.