Many fixes/changes

* FileInstall AutoHotkey.dll only when compiled
* Making tray icon clickable
* Inserting virtual screen coordinates into g_DictMonInfo
* Removing duplicate label, CenterWindow.
* Adding ResizeCenterHalf
* Adding, but commenting, an idea: MinimizeAllButForemost
* Work with adding "Precision" section of app, for precise/absolute
window placements.
* Refactoring