Merge pull request #9 from stenix71/master

filterLink tag documentation
Major refactor for nested support.  Fixed checking for nested properties.  Added two new parameters to the filterpane to support listDistinct due to how nested criteria work.  Updated documentation and example project to illustrate new usage.  Adding tons of new tests.
Changing doc title
Updating the docs to include 2.1.4 changes
Rename filterLink.gdoc to filterlink.gdoc
Merge branch 'master' of https://github.com/Grails-Plugin-Consortium/grails-filterpane

Conflicts:
	src/docs/guide/reference/tags/filterlink.gdoc