Mozilla Thunderbird 17.0.3

Minor release for Thunderbird: 17.0.3

changelog

· MFSA 2013-28 Use-after-free, out of bounds read, and buffer overflow issues found using Address Sanitizer
· MFSA 2013-27 Phishing on HTTPS connection through malicious proxy
· MFSA 2013-26 Use-after-free in nsImageLoadingContent
· MFSA 2013-25 Privacy leak in JavaScript Workers
· MFSA 2013-24 Web content bypass of COW and SOW security wrappers
· MFSA 2013-23 Wrapped WebIDL objects can be wrapped again
· MFSA 2013-22 Out-of-bounds read in image rendering
· MFSA 2013-21 Miscellaneous memory safety hazards (rv:19.0 / rv:17.0.3)
· FIXED - Attachments sometimes could not be removed from the composition window using the keyboard, this is now fixed