Bug Fix to getCamlLogical utility and SPFilterPanel

- Fixed SPFilterPanel to ensure that single values are returned in CAMLQuery
- Fixed getCamlLogical to skip over blank filter values.
- updated built versions of the plugin and demo
Bug Fixes

- Fixed multiple bugs in SPFilter panel due to the introduction of the Sort capability
- Added missing method from SPFilter documentation
- getCamlLogical utility was improved to handle blank values (does not add them to the filter).
- Built plugin and demo with the latest.