v0.5.0 - Upgraded libs

Features:

• Updated the general script libraries, relevant changes below
• ASSCropper:
  • Added crop testing (temporarily apply crop)
  • Allow nudging the crop box with Shift+Arrows and resizing it with Ctrl+Arrows and Ctrl+Shift+Arrows
• PropertyExpander:
  • Added numerical comparisons (${foo<=0}, ${foo>=0}, ${foo<0}, ${foo>0}, ${foo==0}) and string comparisons (${foo^=start}, ${foo$=end}, ${foo~=contains}) to use in templates.
• Updated default template to work better with still images (omit useless timestamp)

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