Wraps comment at 80 characters
Updates method signature. Documents method.
Documents class purpose.
Use addSlashes method.
Removes stray commented line of code.
Merge branch 'release/0.4' of github.com:wordpress-mobile/WordPress-iOS-Editor into issues/427-add-edit-image-meta

Conflicts:
	Assets/ZSSRichTextEditor.js
	Example/EditorDemo/WPViewController.m
	Example/Podfile.lock
	Example/Pods/Manifest.lock
	Example/Pods/Pods.xcodeproj/project.pbxproj
Updates pod after merge, restores references.
Adds NSObject-SafeExpectations pod.

Uses SafeExpectations in WPImageMeta when parsing dicitionary values.
Updates podspec.
Updates pods.