modify readme.md
Add encryptionIdentifier to ensure decryption result is right. Change color scheme to make it more pleasant.
add todo list
test
update todo
test session warranty
find a bug
add test mac address, fix a typo.
fix a bug, which would get a wrong MAC address
V0.3.2
Merge branch 'dev'
V0.3.2
Merge branch 'dev'
delete old build
V0.3.2 stable version