LUCENE-5388: remove Reader from Tokenizer ctor (closes #16)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1556801 13f79535-47bb-0310-9956-ffa450edef68
fix these as API changes (like other 4.x changes)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1556802 13f79535-47bb-0310-9956-ffa450edef68