webform_structured_text 6.x-1.7

A defect remediation and a couple of enhancements to the field:

Defect fix: [#2504541]

Enhancements:

1. You can now specify that the field should be unique - [#2582767].
2. Default values for each chunk can now be specified as well.
3. The webform structured text component is now rendered by default to appear as a single text field, with the option to render it as individual input boxes (the old behaviour). Note that this change may mean you have to do some theming to get the outer <div> to look like a regular text input field. The new webform_structured_text.css file has instructions on how to do this.
4. Text within each chunk is now centered by default. You can turn this off and then use your own styling to modify as appropriate.
5. Error messages on the component configuration page are now more complete, indicating everything that appears to be wrong with any of the mask RegEx, placeholders, labels, and default values, not just the first error found.
6. RegEx's are now checked for validity as part of the component configuration validation, with validation failure error messages indicating what the problem appears to be in the RegEx.

There has also been a bit of code refactoring.