Adjust copyright statement for 2010.
Fix most warnings of percritic -severity 4
Use /x modifier on all regular expressions.
Remove unused private method _is_transmittable_property.
Miscellaneous small fixes (thanks, perlcritic).
Only warn about unknown encodings.
Break cascading if-elsif chain as per perlcritic.
Don't check possible encodings at this point.
Excplicitely test produced RTF.
Regular property stream is not 'unused' anymore.
Limit number of arguments (as per perlcritic).
Avoid double-sigil derefence.
Move each module into a separate file.
Depend on Email::MIME

Submodules Email::MIME::Creator and Email::MIME::Modifier are obsolete
as libraries.
Improve warning message

The encodings are documented, and therefore in fact known :-).
Remove trailing white space
Add new file META.json to the manifest

This change was created automatically by ./Build dist.
Ignore new build artifacts
Update copyright statement for 2012
Add POD to internal module files