v0.9-beta released

New features

• Multiple line input for those looong URL masks
• Choose the browser in which the generated html file with the links will be opened
• For images only
  • Choose whether to Display or Hide broken image links
  • Set the width of the thumbnail images as either a % of the browser window's width or in pixels

Bugs squashed

• Non-image links now display correctly
• Switched from subprocessing module to threading, and moved relevant code from the GUI to main.py