Work in Progress Grouper 0.4

This version has two functionality updates:

1) You can toggle invisibility modes by clicking the middle mouse button on the invisibility button. Always defaults to Dual on startup. Choices are:

Dual - existing behavior (Bard first, dual with casters second)​

Invis - will prefer caster permanent invisibility, Bard otherwise​

IVU - will prefer caster permanent IVU, Bard otherwise​

2) Will now auto-attack mobs within your camp radius if in Vorpal mode (i.e., Chase). Always defaults to enabled at startup, but can be disabled. Somewhat like Sic tank mode, but the camp moves around with you. Checkbox for this replaces the 'Target Clear' button.

Also changed to the new folder layout (hope I got that right), so the original 'grouper.lua' can be deleted from your main Lua folder.

Note that the Setup button now configures the frame limiter. It has a new cautionary tooltip, but don't click it if you don't know what it does. Looking to move this to a better location / hidden on next release.

Just updated to put the library files in the right folder for the Launcher.

Updates in this version:
- fix for crash when zoning
- custom buttons (6)
- customize button text color
- saves settings to config file (per character)
- hide buttons toggle

Still working on it. Code needs further cleanup.