LRDOCS-419 Updated introduction to Staging and Page Versioning, added a section comparing Local Live to Remote Live staging
LRDOCS-419 Fixed User Guide chapter 3's section titles' headers
LRDOCS-419 Updated Remote Live section on staging, other portions of the staging section of User Guide ch 3; added an image for the remote live staging settings
LRDOCS-419 Updated section on staging, local live, remote live, page versioning, staged portlets, using staging and page versioning. Added section on credentials and permissions checking when performing a publishing operation from a staging server to a remote server.
Updated ADT section
adjust Figure numbers
LRDOCS-419 Re-added section on structure default values; this had been unintentionally removed from the UI
LRDOCS-467 Fixed markdown syntax errors, formatting issues, and typos
Fixed typo: 'Lifeay' -> 'Liferay'
Merge pull request #451 from jrao/LRDOCS-419

http://issues.liferay.com/browse/LRDOCS-419
Merge pull request #452 from codyhoag/adt-framework

Updated ADT section
Merge pull request #457 from jrao/LRDOCS-467

http://issues.liferay.com/browse/LRDOCS-467
Merge pull request #459 from jrao/userguide-ch1-typo-fix

Fixed typo: 'Lifeay' -> 'Liferay'