Files needsed to package ISSM into a MacOSX delivery: 

ISSM.appscript : applescript file used by Script Editor to build ISSM.app. Just edit using applescript, and save 
as application. 

ISSM.app: result of above. 

ISSM.pmdoc: Package Maker project, which outputs ISSM.pkg

ISSM.pkg: result of above. 

Package Maker can be command line driven, using the pmdoc project directly. This is what package.sh does.

issm.icns: icon file for ISSM install.
matlabissm: used by the Package Maker to launch matlab with ISSM path sourced. 
startup.m: needed to be sourced by Matlab to point towards mac executables.
