Update jquery.fancytree.filter.js

Enhance filter to allow user to filter with regular expressions. Also allow user to filter on any Fancytree property or top level user defined property.
Merge pull request #1 from markbernard/enhance_filter

Update jquery.fancytree.filter.js
Update sample-ext-filter.html

Update demo to reflect new features.
Merge pull request #2 from markbernard/enhance_filter

Update sample-ext-filter.html
Update jquery.fancytree.filter.js

Set back to original source code.
Update sample-ext-filter.html

Update demo to demonstrate using a function call to perform the filtering.
Update jquery.fancytree.filter.js

Set to master
Merge pull request #206 from markbernard/master

Update filter demo