2006-02-18 first release

What works:
- word browsing
- basic set of exercises

What does not work:
- no support for any browser as described in Concept document. 
  instead there is a simple 'capture from clipboard' feature 
  (just copy a word from any app to see how it works)

Known issues:
- exercises are based solely on Wordnet, the examples and definitions
  from WN are not suitable for our purpose, we need own database...
- dictionary search very limited, only exact form of words can be seached
- win32 binary version exits always with a error pop-up, 
  probably because of some pywornet warnings
- 'capture from clipboard' is always on