add a PostFilter for word frequencies normalization
Update PostFilters.py
various fixes to layout of search explanations
minor changes in explanations
reorganize javascript, and minor fixes
make collocation update via AJAX calls
add working indicator for collocations
Update style.css
Update cite.py
Update kwic.py
Merge pull request #25 from clovis/master

Many fixes, and make collocation use ajax calls to update results