support for permalink and external url

Consolidate GetURL AppleEvent handling into AppDelegate+Scriptability
file
Add scripting access groups to sdef
Add exists command
Add ‘permalink’ and ‘external url’ properties to the article scripting
object
Add a unit test to verify the behavior of ‘current article’

EvergreenTests/ScriptingTests/scripts/establishMainWindowStartingState.applescript

@@ -0,0 +1,37 @@
+property uparrowKeyCode : 126
+property downarrowKeyCode : 125
+property rightarrowKeyCode : 124
+property leftarrowKeyCode : 123
+
+to activateEvergreen()
+	tell application "Evergreen"
+		activate
+	end tell
+end activateEvergreen
+
+to multipleKeyCodes(keycode, numberOfKeys)
+	tell application "System Events"
+		tell process "Evergreen"
+			repeat numberOfKeys times
+				key code keycode
+			end repeat
+		end tell
+	end tell
+end multipleKeyCodes
+
+to establishMainWindowStartingState()
+	activateEvergreen()
+	multipleKeyCodes(downarrowKeyCode, 2)
+	multipleKeyCodes(rightarrowKeyCode, 2)
+	multipleKeyCodes(leftarrowKeyCode, 2)
+	multipleKeyCodes(uparrowKeyCode, 50)
+end establishMainWindowStartingState
+
+try
+	establishMainWindowStartingState()
+	-- hit the down arrow a few times to get into the feeds
+on error message
+	return {test_result:false, script_result:message}
+end try
+
+return {test_result:true, script_result:"established starting state"}