Version bump - WARNING: API Change

* Core: Removed 'Main' Class
* Core: Refactored Application::init(core, settings, metadata) => Application(settings, metadata)
* Core: Slimmed down and cleaned up
* Core: Fixed some bugs coming from reports where some vars was undefined
* Core: Fixed a bug where backspace did not work in input elements after previous refactor
* Core: Hooks are now checked before assigning noop
* GUI: Vertical slider is now inverted
* Sessions: Windows with resize disabled will not be restored to previous size on load
* Dialogs - File: Fixed the filename highlighting in save dialog
* API: You can now have a namespace in OSjs.Applications and set the main class to OSjs.Applications.MyApp.Class
* CoreWM: Fixed getThemes()
* CoreWM: Do not apply theme if name is empty
* Utils: Added AjaxDownload() and global API shortcut downloadFile()
* Application - ProcessViewer: Fixes for the listview
* obt: Fix for htaccess generation
* obt: Now uses local npm packages instead of global
* Added package.json for npm
* Updated install instructions -- simplified