API/ABI reports

[Ponomarenko Andrey <andrewponomarenko yandex ru>]

Hello,

I've started to maintain API/ABI changes reports for the Gtk+ and Glib libraries here:

http://abi-laboratory.pro/tracker/timeline/gtk+/
http://abi-laboratory.pro/tracker/timeline/glib/

The project is just a hobby and I'd like to share my results with the community. Hope this report will help 
Linux maintainers of these libraries to be aware of ABI changes and added/removed binary symbols.

Please let me know if some information in the report is incorrect.

The source code of the project is available here: https://github.com/lvc/abi-tracker

Thank you.