FAQ: Don't reference `docs.jquery.com` as source
Fixes gh-570
Closes gh-579
Plugin Creation: remove content regarding utility methods
Fixes gh-396
Closes gh-577
0.4.2
All: Capitalize 'Ajax' correctly
Closes gh-583
0.4.3
Events: Added heading
Closes gh-532
Update advanced-plugin-concepts.md

Comment should be above the code for consistence with other pages.
0.4.4
Advanced Plugins Concepts: Fix context meaning

`this` in the `showNextImage` function is a reference to `nextButton` and
not as stated to the image node

Closes gh-525
Fixes gh-514
Intro to Events: expand MDN

MDN is not a well known abbreviation, and therefore in this context
should be expanded (at least the first time it is used).

Closes gh-531
Understanding Index: Add note on <1.9 bug

Talk about why we use `.first()` in the examples.

Closes gh-582
Fixes gh-276
javascript-101/operations: Clarify comment

Adding quote around an console.log output clarifies that it's
actually a string. In this article this really makes sense.

Closes gh-581
Fixes gh-542
js101/objects: Iterating properties of an Object.

Closes gh-371
Code Organization Concepts: Fix syntax error

Closes gh-576
Fixes gh-544
javascript-101/functions.md: fix wrong comment

Closes gh-578
Fixes gh-415
events/event-basics.md: inserted missing semicolon into example code

Closes gh-541
events/basics: fix create button DOM element example

Closes gh-587
using-jquery-core/selecting-elements.md: ensured consistent teg representation in content.

Closes gh-564

Formatted <select> in paragraph for :checked selector
javascript-101/loops: add for...in loop

Closes gh-588
Fixes gh-321
Support: Remove old IRC channels
Closes gh-593