v2.0 Major release!

New

• Env_UserTemp - Adds an environment variable and removes it on script exit.
• Env_UserAddFirst, Last, Sort, and Unique - Controls which directory is searched first in case of duplicates.
• Env_UserAddFirstUnblock - Unblocks the directory before adding it to PATH.
• Env_UserAddFirstFast / Env_UserAddFirstUnblockFast - Disables broadcasting which takes about 0.25 seconds each!
• See the script file for the full list of function names.

Breaking Changes

• Error Values are now 1 for Success and 0 for value already added or removed
  • 0 can also mean directory does not exist for Env_UserTemp and its variants only.
• Exceptions are thrown whenever something is wrong.
  • An Access is denied error is thrown if you incorrectly use a Env_System function.

Quality of Life Changes

• All included functions now begin with Env_ to make things simpler.
• Script has been reduced to about ~250 lines. Most functions are just variants.

Support for AutoHotkey v1 has ended.