Adds a native toolbar to Drosera to be a good citizen.
        Adds a Debug menu with key-commands for Continue, Pause and Step Into.
        Fixes a dragging bug from an earlier fix to the divider code.
        Fixes some poor indenting in debugger.js.

        * Drosera/DebuggerDocument.h:
        * Drosera/DebuggerDocument.m:
        (-[DebuggerDocument stepInto]):
        (-[DebuggerDocument pause:]):
        (-[DebuggerDocument resume:]):
        (-[DebuggerDocument stepInto:]):
        (-[DebuggerDocument windowDidLoad]):
        (-[DebuggerDocument toolbar:itemForItemIdentifier:willBeInsertedIntoToolbar:]):
        (-[DebuggerDocument toolbarDefaultItemIdentifiers:]):
        (-[DebuggerDocument toolbarAllowedItemIdentifiers:]):
        (-[DebuggerDocument validateUserInterfaceItem:]):
        * Drosera/English.lproj/MainMenu.nib/classes.nib:
        * Drosera/English.lproj/MainMenu.nib/info.nib:
        * Drosera/English.lproj/MainMenu.nib/keyedobjects.nib:
        * Drosera/debugger.css:
        * Drosera/debugger.html:
        * Drosera/debugger.js:
        * Drosera/viewer.html:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@14984 268f45cc-cd09-0410-ab3c-d52691b4dbfc