Add test case for escaping double quotes.
Escape double quote when escape attribute is set to true.
Add test for supporting attribute type.
Support attribute type in metadata.
Fix jshint errors.
Add test for supporting multiple attributes.
Support multiple attributes.
Remove attribute data-editable=true.

As it is adding the attribute multiple times for multiple attributes.
Use encode instead of escape.
Add test for encode.
Add support for attribute type and encode=true.
Add test for attribute type and encode=true.