add "srss" namespace to PHP EPub class
Add PHP EPub class (and related)
add epub output context
blank cover image
epub output script (filler data)
Updated and newly-namespaced PHPEPub Library
Adds item form option to omit from FT feed

Semi-functional: doesn’t save the item settings yet.
epub-related plugin options
new helper functions: srss_get_page_url and srss_get_host
Updated config screen
minor markup fix
Working epub export!
More appropriate version number, updated description
Merge branch 'epub_test'