Correct #import style to ".h"

<RubyCocoa/RBObject.h> -> "RBObject.h"

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2470 f4f36d40-9719-0410-9868-dde021a23eda
Add a package option "--sign"

add a digital signature to RubyCocoa.pkg installer.

  $ ruby install.rb package --sign="Mac Developer Installer: Your Name"

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2471 f4f36d40-9719-0410-9868-dde021a23eda
Fix package error without --sign option

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2472 f4f36d40-9719-0410-9868-dde021a23eda
Trailing spaces

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2473 f4f36d40-9719-0410-9868-dde021a23eda
Add API documents can be processed with headerdoc

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2474 f4f36d40-9719-0410-9868-dde021a23eda
Generate Objective-C documents under doc/objc/ with headerdoc

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2475 f4f36d40-9719-0410-9868-dde021a23eda
Add Objective-C API documents generated by "rake doc"

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2476 f4f36d40-9719-0410-9868-dde021a23eda