started to write new DictWindow and ViewFactory classes
some testing of the history of searches
added DictEntryView and SenseWidget classes
added some more UI
added possibility of adding cards with examples
removed old no longer used code from dict_window.py
little changes
added example list folding in sense widget
enabled adding examples to the wordlist and added the intro paragraph to the DictEntryView
enabled logging global word list to files named by month and year
enabled logging global word list to files named by month and year (added config entry)
added some minor UI improvements
added some minor UI improvements
Merge pull request #12 from wojtex/revised-UI

Revised ui