when building mailcore2, only run for osx architecture using prepare-mac.sh
Merge pull request #88 from eahrold/master

when building mailcore2, only run for osx architecture with prepare-mac.sh
add progress panel
resolve situation where nil passed in would cause exception
Merge branch 'master' into my-master
fix incorrect notification post
catch situations where nil would cause array index exceptions
Merge branch 'master' into my-master
autopkg repo-update error is detected via stderr rather than terminationStatus
Merge pull request #89 from eahrold/master

catch situations where nil would cause array index exceptions
Just being nitpicky.
Merge branch 'master' into my-master