code: public String[] getMinors(String major) {
  		prepareDetailedVersions();
  		
  		if (majors.containsKey(major)) {
  			return majors.get(major).toArray(new String[]{});
  		}
  		
  		return null;
  	}
docs: Returns all minor versions for the given major version or null
  if major version does not exist.
  
  @param major
  @return