Update Documentation/Adding-custom-settings.markdown
Update Documentation/Adding-custom-settings.markdown

This doc uses a link to the 'naming conventions' document but does not provide an address.
Update Anatomy-of-a-theme.markdown

Close div tag
Merge pull request #39 from Mcewan/patch-1

Update Anatomy-of-a-theme.markdown
Update Creating-lists.markdown
Update Upgrading-a-site-to-a-new-version-of-Orchard.markdown

Updated the Import/Export section.
Update How-Orchard-works.markdown

Update broken castle links.
Merge pull request #40 from jasper-d/patch-1

Update How-Orchard-works.markdown
Add clarification on where to write the view files

Add the path of the file where you should write the code to avoid mistakes such as writing the same code for display and editor views.
Minor Image and Text Changes

Updated an image and some minor text edits.
Email Messaging

Added doc for setting up email messaging.
Correcting URL

Corrected a URL for configuring email.
Small Corrections

Small grammar corrections and URL change.
Merge pull request #42 from Dzeta/patch-1

Add clarification on where to write the view files
Create Patch-4-30-2013.markdown
Update Caching.markdown

Typo
Merge pull request #43 from jasper-d/patch-1

Update Caching.markdown
Update How-Orchard-works.markdown

Added missing grave accent, introduced abbreviation (POM)
Merge pull request #44 from jasper-d/patch-2

Update How-Orchard-works.markdown
Creating Custom Forms and other minor updates

Adding creating custom forms doc and made other minor corrections.