added info directive, updated article show table margins

vipra-ui/app/html/articles/show.html

vipra-ui/app/html/words/show.html

vipra-ui/app/js/directives.js

vipra-ui/app/less/app.less

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

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

...til/src/main/java/de/vipra/util/model/TextEntityFull.java

...til/src/main/java/de/vipra/util/model/TopicModelFull.java

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