Add ability to have HTML formatted strings in bibtex, and add title parameter:

Use modifier: ":html" so @abstract@ strips html, and @abstract:html@ retains html in the abstract.

Additionally add the variable @papercite_title@ for a stripped version of the title for use in pretty id's (sample: http://ecomerc.com/about-us/publications/#organizational-design-a-step-by-step-approach)