переробленний клас підрахунку біграм в тексті
some fix and change
some fix and change
ok
Merge branch 'test2' of https://github.com/rmnk/sym-crypto-lab2 into test2

Conflicts:
	src/com/symcrypto/lab2/AffineDecipher.java
added filter for used keys
some fix and change
fixed
last version