bugfixes:
analyzer.js
 - calling createLanguageSpecificAnalyzer with lang "de" and without
   config caused error ("Version not defined")
field.js
 - DefaultField was broken because of wring variable name
simpleindex.js
 - added explicit checks for null and undefined to
   SimpleIndex.createDocument() to avoid nullpointerexception
fixed testInitDirectory (parameters had swapped places tmpDir <-> "test")
Merge pull request #4 from kmfdm1/master

Bugfixes