Port to Python 3 / Gedit 3.8

[SimonSapin]

Gedit 3.8 switched to Python 3 for its plugins.

[gracca]

This plugin doesn't work anymore with Gedit 3.8!! :(

[SimonSapin]

@gracca , can you be more specific? What exactly doesn’t work? Do you get any output if you start gedit from a terminal?

[gracca]

@SimonSapin sorry, I didn't see the tabs for Commits and Files Changed. After applying your changes now the plugin works like a charm. Thank you!

[gracca]

@SimonSapin: How to download the changes you made as a diff or patch file?

[SimonSapin]

@gracca GitHub easter egg: add .diff or .patch to this URL.

But a better way is to use git to fetch the gedit3.8 branch from my fork of the repository: https://github.com/SimonSapin/gedit-source-code-browser.git , or convince @Quixotix to merge this pull request :)

[gracca]

Fetched the branch, and I'm going to contact @Quixotix :)

Thanks again!

[suprafly]

Thanks for fixing this! Wondering if you might be able to suggest/help patching his other plugin, gedit-django-project

I've tried to apply some similar cleanups to this commit, but can't seem to get it working. I have not done any work with python3, so I think I am missing something basic here.

[SimonSapin]

@suprafly I’m not personally interested in gedit-django-project, but maybe someone could help on IRC (#python on Freenode) or stackoverflow.