Handling resizing events
* Removed handling size requests from window to drawing widget.
* Calling set_size_request only on startup and view_type change.
* Still has a bug in hscroll: not resizing when adding more tasks or
when changing from a previous view that didn't have tasks
Styling code according to PEP8.
Deleted file gantt_prototype.py
* This file is from before refactoring the code, and it is not used anymore.
Fixed bug in hscroll
Changed the handling of most events from the outer window to the widget.
* Added date-controling functions to the Drawing class, such as next(), previous(), show_today(), etc.
Add a .gitignore file
Create README file (and add screenshot). Fixes #1