Remove additional debug

Signed-off-by: Krzysztof Opasiak <ups100@tlen.pl>
sample datas
Merge branch 'master' of github.com:ups100/carrot2
some 'metadata'
Merge branch 'master' of github.com:ups100/carrot2
Extracted distance functions into class.
Moved classes into appropriate packages.
Added cosinus metrics attirbute.
Upper case first letter of labels set.
Added some comments.