src/irclib.py: Further improvements to SASL and a few other minor things
Merge pull request #671 from nyuszika7h/patch/sasl-improvements

src/irclib.py: Further improvements to SASL and a few other minor things
Revert "Update .travis.yml"

This reverts commit 732b2daace48f7cf9c9ba08250e154dc3375e3f9.

Conflicts:
	.travis.yml
Fix previous commit.