Remove Xcode 1.x-2.x support

git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2467 f4f36d40-9719-0410-9868-dde021a23eda
Deprecate Objective-C class "RubyCocoa" in <RubyCocoa/RubyCocoa.h>

developers can use RBRuntime functions to call ruby from Objective-C.

- bundleInitWithProgram:class:param: -> RBBundleInit()
- applicationInitWithProgram:argc:argv:param: -> RBApplicationInit()
- applicationMainWithProgram:argc:argv: -> RBApplicationMain()


git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2468 f4f36d40-9719-0410-9868-dde021a23eda
Support Xcode 5 modules such as "@import RubyCocoa;"

We can use "@import" like this:

    @import RubyCocoa;
    @import RubyCocoa.RBRuntime;

note: RBObject is not available.


git-svn-id: https://svn.code.sf.net/p/rubycocoa/svn/trunk/src@2469 f4f36d40-9719-0410-9868-dde021a23eda