Javadoc and Formatting fixes.
Also, extremely minor code changes which have been tested.
This commit is only part one of two commits that aim to fix problems with formatting in our project. In part two I will modify the Google Java Style Guide (since it closely matches our code style) for our project so there is guidance on how to format and document.
* Updated PlotSquared URL
* Removed plugin acronyms
* Fixed a typo
* Fixed grammar
* Use modern block id's
* Update YouTube video URL
- The .class files in the contrib folder of the zip go in
plugins/WorldEdit/nmsblocks
- This allows us to swap new class files in without releasing
a completely new version each time
- Whatever version the last release is for has an inbuilt fallback
- If the plugin and server are mismatched and you have nothing in
nmsblocks you're screwed
