#28: added the posessions pattern (JUnit test is missing)
#22: fixed bug which cause empty output file
#22: added several stop words
Merge branch 'shlomo.28.remove_posession_suffixes' into shlomo.22.MR_for_3.2
#22: fixed all TokenizerTest unit tests.
most of them were due to non UTF-8 formatting of the Java files.
Added JUnit test for the posession apostroph removal. This closes #28.