Farsi support

Supports Farsi (Persian) aggressive tokenizing, has got the primary
StopWords for Persian.
Stemming is currently disabled, but it will be supported soon.
Fix passing the classifier on save

fs.writeFile has only on parameter to callback, which is the error callback (see here: http://nodejs.org/api/fs.html#fs_fs_writefile_filename_data_encoding_callback) - so the written classifier never gets passed back to the given callback.
remove parameter name
Fix half/fullwidth flipping in quotation mark
Escape backslash in regexps
Fix tests
Add a link to performance tests on JSPerf for replacer()
fixed typo, should not create a new object of the required tokenizer as this is done on the next line. This also fixes browserifying the phonetic section
ignore empty documents
Merge pull request #70 from joscha/ignore_empty_docs

ignore empty documents
Merge pull request #68 from Tzbob/master

Unnecessary usage of the new operator
Merge pull request #67 from gmarty/normalizer-fix

Japanese Normalizer fixes
Merge pull request #65 from joscha/master

Fix passing classfier to save() callback
Merge pull request #66 from joscha/fix_paramaters

Fix paramaters
ticked 0.1.17
Add a noun inflector for Japanese
More complete regexp to match Katakana
More complete regexp for Japanese characters
Iterate over an array is faster with for loops
Pretty sure it is useless, but caching array size