GitHub: Use ASCII quotes

Those Unicode quotes break on Python 2.
Merge pull request #176 from nyuszika7h/fix/github-use-ascii-quotes

GitHub: Use ASCII quotes
WebStats: Show exception in logs.
WebStats: Fix bug caused by weird code.
WebStats: Fix error formatting when pygraphviz is missing.
LimnoriaChan: update links to the git repositories

If you go to any git repository page on GitHub, you have the options to clone with `https`, `ssh` or `subversion`. I don't know if they are planning to retire `git://` or something.
WebDoc: use HTML5
WebLogs: use HTML5.
WebStats: use HTML5.
Merge pull request #183 from Mkaysi/patch-3

WebDoc: use HTML5
Merge pull request #184 from Mkaysi/patch-4

WebLogs: use HTML5.
Merge pull request #185 from Mkaysi/patch-5

WebStats: use HTML5.
Merge pull request #182 from Mkaysi/patch-2

LimnoriaChan: update links to the git repositories
WebDoc & WebLogs: fix intendation in HTML5 source.

This fix isn't visible unless someone goes to the page source.
WebStats: add more information to generated time.

The format is now `%Y-%m-%d %H:%M:%S %Z` which translates to something
like `2014-05-30 12:45:48 EEST`.
Merge pull request #187 from Mkaysi/html5-fix

WebDoc & WebLogs: fix intendation in HTML5 source.
Merge pull request #189 from Mkaysi/webstats-tz

WebStats: add more information to generated time.
WebLogs: use ISO 8601 date format.

Squashed commit of the following:

commit 86ccca9ac6a8b42005003884f61ec1c0d799436b
Author: Mikaela Suomalainen <mikaela.suomalainen@outlook.com>
Date:   Fri May 30 15:36:32 2014 +0300

    WebLogs: Use `-` as separator instead of `/`. See ISO 8601.

commit d8b37954a36bc468c82832acaf7f13dc3f1b8c79
Author: Mikaela Suomalainen <mikaela.suomalainen@outlook.com>
Date:   Fri May 30 15:34:48 2014 +0300

    fix f10bbbed3e6fd6b110381e7430e94034646257eb

commit f10bbbed3e6fd6b110381e7430e94034646257eb
Author: Mikaela Suomalainen <mikaela.suomalainen@outlook.com>
Date:   Fri May 30 15:29:39 2014 +0300

    WebLogs: use ISO 8601 for showing date.
Merge pull request #190 from Mkaysi/weblogs

WebLogs: use ISO 8601 date format.
Update plugin.py

Wikipedia added 'dir="ltr"' to the source of the article link, which means regex cannot find the text anymore and thus variable is empty.