Add display_item_total to return result for orders
Spelling mistake

Here we are changing a preference to something [other then] the default as specified in Spree::AppConfiguration.

"other then " -> "other than"

When working with [Taxomonies] there are two keys terms to understand:

[Taxomonies] -> Taxonomies
Moved all closing triple-ticks (```) to the end of the preceding line, except in release notes.

Conflicts:
	content/developer/customization/i18n.markdown
	content/developer/deployment/heroku.md
Added a few markdown conventions to the README
Added markdown conventions to the README
Extended markdown conventions to include class instances and attributes.
Markdown standardization - activators, addresses, and adjustments.
More standardization on markdown, more explicit explanation for the FlexiRate calculator.
Updates to the Calculators guide, including adding back in the bookmarks
Further markdown standardization
Deleted duplicate, inferior payment guide
Normalized the orders guide
Removed the unused duplicate line_item guide
[getting started] Correct extensions link at the end

Fixes #122

Conflicts:
	content/developer/tutorials/getting_started_tutorial.md
	lib/resources.rb
Moved triple-ticks to the line above on preferences tutorial
fixed text in checkout.md. grammar and path fix [Fixes #126]

' to to ' changed to ' to '
path reference to checkout directory in core changed to frontend

	modified:   content/developer/customization/checkout.md
Normalized the payments guide
Normalizing preferences tutorial, more changes to markdown standards (WIP)
Typo fix for Addresses documentation.
Merge pull request #127 from onedanshow/master

Typo fix for Addresses documentation