EssentialsX Selectors: @a, @p, @r (Addon)

This release adds full support for vanilla parity for command selectors! This now means that any (player) selector or specification that's possible in a vanilla command now works for essentials commands as well. (Note this does not include @n or @e, as Essentials commands are fundamentally incompatible with such selectors.)

• Fixes #17 (hopefully)
• Implements #16

Unfortunately, the code under the hood for this plugin is still pretty rough overall, and unfortunately there is still no tab completion for the selectors, but I hope to address both of these issues down the line.

Thank you to xgioa, wrjgrrgpmc-hash, and hellfirehd for their reporting and feedback!

This addresses and hopefully fixes the bug present in #13

Thanks to @ardse for reporting!

Remember to check out the new features present in v2.0!

The entire plugin has been rewritten from scratch!

What does this change?

• Much more maintainable back end, way easier to contribute as well
• Updates will be quicker, bug fixes will be easier and faster
• The system is way more modular: there is very little hard-coding and bad practices (which is just better for everyone)
• More efficient; the tiniest little bit faster than the previous version, but you won't notice it

Additions:

• Added the ability to use and (&) and or (|) operators is specifications.
• Example 1: /kill @a[tag=dog|cat&!rat] would mean "kill all players with the tag "dog" OR "cat", and they don't have the tag "rat"
• Example 2: /feed @r[team=red|blue|green,tag=player&!staff,gamemode=!creative&!survival] would mean "feed all players on team "red" or "blue" or "green", who has the tag "player" and not the tag "player, who's gamemode is not survival or not creative.
• Due to the logic of how it work, you always need to put all of your OR statements before your AND statements, so for example, /kill @a[tag=red&blue|green] would NOT work, due to the implementation of this system.

Noticeable changes

• Fixed #11. Thanks to @Skyw0lf07 for reporting it!

Backend Changes

• Refactored project structure a bit
• Switched to using Maven
• Formatted some files better

Fixes #9 and any other similar issues that could occur (Hopefully)

Thanks @RealTriassic for reporting!