Version 1.1 Design

```
Design for next version is needed.

Design steps:
1. Problem definition
2. Functional requirements:
  a. User Interface design
  b. Input files' formats
  c. Output files' formats
3. Non-functional requirements
4. Testing plan
5. Architecture
6. Low-level design of each module 


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Original issue reported on code.google.com by `boris...@gmail.com` on 1 Dec 2009 at 12:26
