Updated Stegano version

[ajmeese7]

The v0.8.2 version of Stegano that was used previously occasionally gave the following error:

# stegano-lsb reveal -i specimen-image.png -e UTF-8 -o output.txt
Traceback (most recent call last):
File "/opt/Stegano/stegano-lsb", line 94, in <module>
data = tools.base642binary(secret)
File "/opt/Stegano/stegano/tools.py", line 100, in base642binary
b64_fname += '==='
TypeError: unsupported operand type(s) for +=: 'NoneType' and 'str'

This upgrade will resolve the problems I was encountering.