v12 support

Updates the module to work on v12. Closes #8, #10, & #14

Removes half-level proficiency support for PCs. Fixing the issue with the level adjustment applying to untrained skills was non-trivial.

If you want to handle half-level proficiency for PCs use the following rule element on an effect/feat on the PC.
{"key":"AdjustModifier","selector":"all","slug":"proficiency","mode":"subtract","value":1,"predicate":[{"not":"proficiency:untrained"}]}

V0.5.1

Update module.json to the correct version number/release url.

V0.5.0

Update the Module.json to allow use on v11.

Half-level proficiency needs some work.

V0.4.1 Bugfix

Bugfix release:
Closes issue #6
Fixes missing language file for the Half-level proficiency for PCs

V0.4.0

Updates the module to be compatible with v10

V0.3.1 Bugfix

Fixed a bug that broke the unflatten context menu.
Confirmed that PF2e Proficiency Without Level can flatten PF2e's new @Checks feature.

V0.3.0

Update for foundry v9

v0.2.2 Hotfix

Updated the module to function on Foundry 0.8.9 using the latest version of the PF2e system.

Changed the way flattening is preformed such that NPC stats aren't altered directly but are instead modified.

[Hotfix take 2] Fixed module manifest, to correct foundry version compatibility, and switch over to League URL

V0.2.0 Support for 0.8.9

Updated the module to function on Foundry 0.8.9 using the latest version of the PF2e system.

Changed the way flattening is preformed such that NPC stats aren't altered directly but are instead modified.

V0.2.3

Updated the module to function on Foundry 0.8.9 using the latest version of the PF2e system.

Changed the way flattening is preformed such that NPC stats aren't altered directly but are instead modified.

[Hotfix take 3] Fixed module manifest, to correct foundry version compatibility, and switch over to League URL and correct download url.