Text To Screen v1.7

This release focuses on performance and usability improvements, as well as bug-fixes.

Changelog:
Converted previews and the output window to WPF for massive performance and usability boost
Added output style control panel
Added ability to choose an image background
Added hotkeys to change font size (+/-) and font style (Ctrl+B/I/U)
Added option to force change application language
Added automatic update checking
Multiple improvements and fixes to searching
Multiple fixes to newline handling of song texts
Fixed windows sometimes going off-screen
Fixed output window dragging being off-center
Fixed archive file locks not being released
Fixed file and verse lists not being disabled on start if no archive is loaded
Fixes to full-screen mode and window mode switching
Fixed save hotkey interfering with search box
Fixed clicking No in file save prompt not working properly