Feature idea: Search and view all tasks

Hi! Awesome job so far. Here are some ideas that would make Week Plan even more awesome:

• Task search: Yeah, we can filter tasks right now, but that really doesn't help me if the task I am looking for has been scheduled 4-5-6 weeks from now. 
• View all tasks: Monday mornings I usually schedule my all tasks... problem is, Monday mornings I am usually not 100% alert and I have found myself sending a task to the incorrect month. When I noticed the task was not in the right week, it took me quite a while to search for it week by week until I finally found it. Viewing all tasks would also give us more control and a better overview than this week by week view. I really liked how it was done in Things by Cultured Code:

• View all finished tasks: Same idea, it would be nice to see all my finished tasks (and reflect on how awesomely-productive I am). 

Gracias!