Edited Feature: Feature Enhancement: Customizable email subject [1551]

Would it be possible to support customization of the email subject line? Perhaps support substitution parameters such as %showname%... like the CustomRenameBySeries parameter?

I recognize some of these parameters can only have values after the series info is downloaded which might make the starting conversion substitution more limited.

For consideration, parameters could be added to the mcebuddy.conf file:

eMailSuccessSubject=MCEBuddy started a video conversion

Which could then be customized like:

eMailSuccessSubject=MCEBuddy started conversation of %showname% - %episode%