Merge remote-tracking branch 'upstream/master'
Filters should be responder instances.
Move content filter to a filter.

Remove static variable from SaveResponder.
Code cleanup in wiki importer code.
Fix exception when suite is run without test pages.
Move the actual importing logic for WikiImportingResponder to WIkiImportingTraverser
Move ImportError to traverser class.
Remove TestEventListener and all related code.

Imports are triggered explicitly from the TestResponder. This removes that last static field. We can make FitNesse really modular now.
Fix title on import page.
Remove virtual page css.
Rename WikiPageProperties.isImported to isImportedSubWiki.

Fix wiki import for imported root pages.
Let FitNesseSuite execute MulitpleTestRunner directly.

 - No longer need the java formatter in TestResponder
 - No longer need instance magic in JavaFormatter
 - JavaFormatter moved to fitnesse.junit
 - Removed JUnitHelper
Move property file loading to ConfigurationParameter class.
Properties creators get parent properties.
Use ContextConfigurator in FitNesseSuite.
Can set config file for JUnit runner.
Reorganize FitNesseSuite for readability.
Update JUnit runner documentation.
@Port annotation for JUnit runner is deprecated.
Merge pull request #388 from raboof/query_table

Fix query table example
Merge pull request #386 from amolenaar/import-traverser

Improve modularity of wiki responder module