Metapad text-editor upgrades to version 2.0

Metapad is the next component of the upcoming PostX Gnu/Linux release (TBA) to get upgrades.

Features:

Line Numbers: Clearly visualized line numbers next to your text.
Toolbar: A toolbar for quick actions such as undo, redo, save, open, print, and font selection.
Styling: Custom styling for the editor and the application, done via CSS styling. Icons are from Adwaita icons theme. Without icons a button with a text will be shown.
Font Change: Quickly change the font of the selected text.
Open/Save Dialog: Intuitive dialogs for opening and saving your files.
Printing: A print preview and printing capability.
Protection: Before closing or opening new files, a warning is given if there are unsaved changes.