Add Option to set different ciphers to different channel in config file. #12

Signed-off-by: Sven Haardiek <Sven@Haardiek.de>
Working on issue #12. The special cipher, set for one channel in the options, is actually used for encryption, the special cipher also is shown in the status bar instead of the global cipher, and the /ircrypt list command shows also the special ciphers for different channels

Signed-off-by: Sven Haardiek <Sven@Haardiek.de>
Fixed some minor style issues

Signed-off-by: Lars Kiesow <lkiesow@uos.de>
Issue #12, Merge branch 'diffciph' into 'master'

This merge should make it possible to specify cipers for each channel
separately. This fixes Issue #12.

Signed-off-by: Lars Kiesow <lkiesow@uos.de>

Conflicts:
	ircrypt.py