added dtm file model

tasks.todo

vipra-cmd/src/main/java/de/vipra/cmd/Main.java

...-cmd/src/main/java/de/vipra/cmd/ex/FilebaseException.java

vipra-cmd/src/main/java/de/vipra/cmd/file/DTMDateIndex.java

vipra-cmd/src/main/java/de/vipra/cmd/file/DTMFilebase.java

vipra-cmd/src/main/java/de/vipra/cmd/file/DTMVocabulary.java

...a-cmd/src/main/java/de/vipra/cmd/file/DynNMFFilebase.java

vipra-cmd/src/main/java/de/vipra/cmd/file/Filebase.java

vipra-cmd/src/main/java/de/vipra/cmd/file/FilebaseIndex.java

vipra-cmd/src/main/java/de/vipra/cmd/file/JGibbFilebase.java

vipra-cmd/src/main/java/de/vipra/cmd/lda/Analyzer.java

vipra-cmd/src/main/java/de/vipra/cmd/lda/DTMAnalyzer.java

...-cmd/src/main/java/de/vipra/cmd/option/ImportCommand.java

...a-cmd/src/main/java/de/vipra/cmd/option/StatsCommand.java

vipra-cmd/src/main/resources/config.properties

vipra-util/src/main/java/de/vipra/util/AbstractCache.java

vipra-util/src/main/java/de/vipra/util/Config.java

vipra-util/src/main/java/de/vipra/util/Constants.java

vipra-util/src/main/java/de/vipra/util/FileUtils.java

vipra-util/src/main/java/de/vipra/util/model/FileModel.java