MultiSend 1.20

update doc, add preprocessor change to build for 4.15

Multisend 1.19 - Interface 4.11

1.19 - interface bump

Multisend 1.19 - Interface 4.14

1.19b

1.19 - interface bump

Multisend 1.17 - Interface 4.08

1.17 - update for c++20, august ashita4

Multisend 1.17 - Interface 4.09

1.17b

1.17 - update for c++20, august ashita4