General heuristic for differentiating title and start of section content
pattern.metrics readability() type checking
pattern.text find_keywords() takes optional parameters
pattern.web: fix() for bad Unicode strings, URL.open() cookie support.
update unit tests
canvas.js small adjustments to Color, renamed LCH to HCL.
pattern.db Datasheet.columns.sort() with reverse=True now works
pattern.text support for word frequency lists
multilingual word frequency lists

Frequency lists (e.g., pattern/text/en/en-frequency.txt) contain relative document frequency for common words. This gives us better keyword extraction with, for example, pattern.en.keywords().
pattern.vector BPNN classifier (backprop neural network, slooow)
Merge pull request #74 from dan-fu/master

General heuristic for differentiating title and start of section content
Merge branch 'master' of github.com:clips/pattern into origin
fix german typo
pattern.web: Dan Fu's Wikipedia update
pattern.search bug fixes

notably: do not cache patterns that use a taxonomy, which are mutable dicts.
pattern.search bug fixes

notably: do not cache patterns that use a taxonomy, which are mutable dicts.
Merge branch 'master' of github.com:clips/pattern into origin

Conflicts:
	pattern/text/search.py
python 3 support: long, dict.iterkeys(), itervalues(), iteritems()
pattern.vector: optimize chngrams()
pattern.vector: various improvements

- chunk() mix() and bin() helper functions
- Model.posterior_probability()
- Model.chi_squared()
- fsel() feature selection
- SVM.load() uses NamedTemporaryFile and now works on a server