This commit adds the `docset` command to jake, to create a Docset from a doxygen build. It adds a shell script to the "support" directory that manages the build, and includes an Info.plist file that gets copied to the Docset when built.
- It turns out doxygen would not generate documentation for the first method in a file (or sometimes any methods at all) if there was no ivar block or an empty ivar block. Now a dummy __doxygen__ ivar is inserted in empty blocks to force correct behavior.
- Added a missing @endverbatim to CPExpression.j.
- Tweaked class documentation for CPPredicate.j.
- Changed to centered, fixed-width layout, it results in shorter line lengths which reads more easily.
- Moved support files to separate support directory.
- Removed blank lines at end of multi-parameter method prototypes.