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.
Fix some typos.

Closes gh-442
0.3.3
Build: Upgrade to grunt-jquery-content 0.11.1
0.3.4
Advanced Plugin Concepts: Changed "Firebug console" to "console"

Closes gh-453
0.3.5
Widget Factory: Fix rendering negative progressbar value

Closes gh-454