Add comments explaining switch block
Update advanced-plugin-concepts.md

Code style adherence
Merge branch 'pr/432'
0.3.1
0.3.2
Add event-basics and event-helpers to order.yml. Fixes #437.
Removing a bracket

There is a bracket that was not open
Typo: this will be set instead of `this` will be set
fix typo
Update history-of-events.md
Typo: Change "brackets" to "parentheses"
Fixed parameter order for insertBefore() example.
Append Outside Loop: Grammar and spelling corrections.