update examples (better file path handling)
update unit tests (better file path handling)
use os.realpath() instead of abspath()
pattern.web Twitter.profile()

For the given author id, alias or search query, returns a list of (id, alias, name, description, location, picture, date created)-tuple.
pattern.vector kfoldcv() now returns a 5-tuple including F1 stdev.
update examples
pattern.db Datasheet.html yields a HTML-string with a <table>.
small fixes