Merge branch 'master' into cpan
Imported Upstream version 0.4.9
Add xmlns:xsi to opf20 metadata declaration (required for FBReader parsing)
Default to OPF20 format instead of OEB12
system_result helper procedure
Use system unzip to extract zip/epub if available to bypass common permissions bug in Archive::Zip
fix_spine and gen_ncx both ensure that the spine has the toc attribute set properly
genncx command for ebook script
fix_links now skips mailto: addresses as well as URIs
gen_epub automatically creates the NCX if missing
Add Penguin Group to publisher map
Fix potential issue in manifest_hrefs with undefined mime types
Handle OPF files found in subdirectories
Use top-level directory instead of OPF filename for default epub filename
Normalize creator names
Allow adding and deleting subject elements
Add subject and description to ebook setmeta
The event attribute for dc:date is now deprecated
ebook setmeta date
set_meta method for setting <meta> tags