added a button to export boards to excel from the board overview

[toovy]

If you need to export multiple boards it can be painful to enter each board and press the export link. So I've added the possibility to export from the overview. Comments appreciated.

[urbanofreitas]

Hi toovy,

I really want this feature, but I'm relatively new to this (testing software, etc).
So I came to ask how can I test, so I can give you feedback.

Thanks in advance.

[toovy]

hi @urbanofreitas, the issue is that there are still bugs that I have no time to work on. You would need to find someone else who improves my code.

To test it you would need to clone this repository https://github.com/triggercode/export-for-trello and follow the steps described in the readme Install Development Version.