Modified exe manifest for Windows 8.1 compatibility.
Added A_OSVersion value WIN_8.1.
Changed Hotkey command to allow ~tilde prefix to be added or removed.
v1.1.15.00
Add MB_TOPMOST to error and warning dialogs.
Fixed `Until` not breaking out of recursive file/registry loops.
v1.1.15.01
Fixed debugging negative integer keys in objects.
v1.1.15.02
Updated build notes in README.
Fixed X(,(y)) and X(,"%y%") incorrectly raising an error.
Fixed meta-functions to exit thread correctly after using Exit or Throw.
Merge branch 'master' into alpha