v3.1 Major release!

• Now working in Blender 2.8.
• Most features will only work in Cycles, however some will also now work in unsupported engines (e.g. Eevee). Full support for Eevee will come in the next major release.
• You can now add multiple HDRI folders instead of just one, useful if your HDRIs are stored on different hard drives, network storage or Google Drive folders.
• Added horizon shifting tools to lower or raise the horizon while trying to keep it looking natural.
• You can now save the current HDRI settings as the default for that particular HDRI and easily restore them later, or reset all the HDRI settings to factory defaults.
• Added previous/next paddles to more quickly increase or decrease the HDRI resolution used.
• Added an "Aim light using 3D view" function.
• Added a global exposure control that lets you adjust the brightness of all lights at once.
• Fix some harmless errors that pop up after enabling size/label visualization and then switching to another editor type.
• Better detection of light strength value when using more complex node setups.
• Light aiming tools now support both Quaternion and Euler rotation systems.