started refactoring of keywordfrequencycalculator, added a constructor and tests
removed old test
minor: changed order of methods
added new lucene indexer and its implementation with simpledocument, also has a test
major advancement: repository with base lucene class and concrete simple document implementation
minor
minor
LuceneRepository: delete by query and some refactorings, also removed versions from pom
minor
started developing indexing configuration by annotations
minor
major: removed constructor from keyword freq calculator. now the analyzer should be passed in as param
refactored class name
fixed wrong refactored class name
fixed wrong refactored class name
finished brand new implementation of keywordFrequencyCalculator. close #14