adds a gitingore for dwsync.xml files
implements regions and countries

tested and work adn proved in connections-expsearch plugin.  for example
cnOptions::getRegions() on
https://github.com/jeremyBass/connections-expsearch/blob/master/connections_expsearch.php#L426
missed clean up from my older implementation
Remove use of uniqid() from metaboxes.

closes gh-324
Merge branch 'country-state-options' of https://github.com/jeremyBass/Connections into country-region-options
Move geo methods from cnOptions to cnGEO.

gh-333
gh-338
Move geo methods from cnOptions to cnGEO.

gh-333
gh-338
Add settings options for base country and region.
Fix sanitation of the unit $atts in cnRetrieve.
Add support for readonly and disabled inputs in cnHTML.
Add support for required items in sortable checklists.
Update settings field options for sortable checcklists.
urlencode() the cn-s query var used to create pagination links.

fixes gh-339
Add class to the label node in cnMetabox_Render.