Fixed problem with the version of a parent pom.
Merge pull request #97 from acz-icm/master

Importers bug fix; import pdfs without metadata; fix in keywords extraction
Fixed some bugs discovered by Sonar.
Fixed some bugs discovered by Sonar.
Fixed some bugs discovered by Sonar.
Fixed some bugs discovered by Sonar.
Keywords extraction - document text extraction moved to private method; some other changes in languages support
Merge branch 'master' of git://github.com/CeON/CoAnSys
Protobuf models moved from logs analysis to Models module
Adaptation of logs analysis to new model
Importing logs moved from Logs analysis to Importers