2.0.5-beta1

• TS-flipped mode added for plot functions.
• Multicaustic function renamed to Multirange Caustic.
• New function: Multibeam Caustic.
• New function: Beam Parameters at Elements.
• New function: Show Round-trip (can be called from plot window).
• New elements: Axicon Mirror, Axicon Lens.
• Copy/Paste actions for pumps.
• Parameter adjuster can be created via element's context menu.
• Default units for function results can be chosen via app settings dialog.
• Fixed: Multicaustic doesn't save the mode (beam radius/front radius).
• Fixed: Invalid autolimits when graph is constant line.
• Fixed: Unable to set adjusting parameter via typing in adjuster input box.
• Fixed: Wrong autolimits on 2D Stability Map plots.