mimemail 6.x-1.0-alpha4

The fourth unofficial release and snapshot of current functionality.

The following patches have been committed since the alpha3 release:

• #642800 by scronide: Enforce requirement of PHP 5.x for Mime Mail Compress
• #740856 by sgabe, Vicbus: Check if the file part is set in the body
• #567594 by hanoii: $mailkey is not properly set in drupal_mail_wrapper()
• #768794 by sgabe, danyg: Check if the name is empty when the address is an object
• #700996 by sgabe, -Mania-: Custom inline style properties overwritten when using CSS Compressor
• #729334 by plach: Flawed CSS to XPath conversion for class selectors in Mime Mail CSS Compressor
• #456260 by sgabe, kenorb, kscheirer, mitchmac: WSOD: smtp_library variable is not removed when Mime Mail has been disabled
• #698794 by sgabe, mobilis: Attachment Content-Type-fix
• #629038 by jackinloadup, sgabe: Attachments don't respect list setting