HealLite 0.1.20

• Update the compatibility declaration for live WoW Retail 12.1.5 (interface 120105), so the game recognizes the addon as current.
• Include the previously prepared 0.1.19 fixes: replacing a spell preserves Auto Target when disabled, additional mouse buttons 6-31 use WoW's numeric secure attribute names, and removing assignments/buttons clears old actions.
• Preserve existing settings, button names, and spell assignments.

This week's review found no required changes to HealLite's health display, healer-effect indicators, role icons, spell picker, or secure click mechanism.

All ten Lua files compile with Lua 5.1. Regression checks exercise all eight modifier combinations, Auto Target on/off and preserved preferences, buttons 4-31, removed assignments/buttons, and applying edits after combat. These checks use simulated game calls; live-game casting, rendering, and combat behavior have not been verified. Restricted aura indicators may remain unavailable in combat.