Improve fixed issue handling
Improve fixed issue handling

Only set/update bug status, resolution, and fixed-in version when
appropriate.  Always send an update announcement via bug::update()
if the issue was updated, instead of only when a note is attached.

bright-tools/source-integration-fixes,mantisbt-plugins/source-integration,make-all/source-integration,bright-tools/source-integration,01-Scripts/source-integration,dregad/source-integration,bright-tools/source-integration,bright-tools/source-integration,morgant/source-integration,make-all/source-integration,mantisbt-plugins/source-integration,bright-tools/source-integration-fixes,bright-tools/source-integration-fixes,dregad/source-integration,mantisbt-plugins/source-integration,dregad/source-integration,make-all/source-integration,bright-tools/source-integration,01-Scripts/source-integration,morgant/source-integration,morgant/source-integration