Code formatting and remove useless javadoc
Code formatting
Fix reference in javadoc
Replace string + string1 by new StringBuffer(string).append(string2).toString()
Code formatting
Fix generics warning
Fix BadLocationException in Step2Panel when reading CSV file with empty lines by replacing StringTokenizer by String.split(regEx)

Fixes 52North/sos-importer#11
Related to http://bugs.java.com/bugdatabase/view_bug.do?bug_id=4418160