remove fixed mosh.pkg link; sha256 both package and build report

Author: cgull

.travis.yml

@@ -79,8 +79,7 @@ script:
         set -e
         cd macosx
         env ZERO_AR_DATE=1 MACOSX_DEPLOYMENT_TARGET=10.10 ./build.sh
-        ln ${TRAVIS_TAG}.pkg mosh.pkg
-        shasum -a 256 mosh.pkg
+        shasum -a 256 "${TRAVIS_TAG}.pkg" "${TRAVIS_TAG}-build-report.tbz"
       )
     fi
 # Deploy the OS X package to a GitHub release.