fix issue cdump#8: better test case, v0.1.20

fix issue cdump#8 - sell all & open short in one trade + add test, v0…

….1.19

tests: allow connection error to cbr.ru, v0.1.18

v0.1.17

ibtax: command-line arg --years + more detailed final profit

v0.1.15

add Index TickerKind, v0.1.14

v0.1.13