fix clode block generation

added fenced code blocks to default extension list
Revert "border-radius only for first and last input"

If input fields are not close enough to each other, it looks weird. Also
it didn't work in mobile view.

This reverts commit 77d40a99eb7bf7a28d28cfc34b13631d8d1c914a.
add version fallback, closes #102
remove isso.css from pypi distribution
don't scrollIntoView on expanding comments

A regression introduced in 94ee6a69
preserve HTML tags while editing comments
add CSS for blockquote and pre
from __future__ import unicode_literals
update changelog
Preparing release 0.9.3
Back to development: 0.9.4
Merge branch 'legacy/0.9'

Conflicts:
	CHANGES.rst
	isso/core.py
	isso/dispatch.py
	setup.py