Reformatting code
Merge remote-tracking branch 'merchello/1.3.0' into 1.3.0

Conflicts:
	src/Merchello.Web/Trees/ServerVariablesParsingEvents.cs
Bumped dev version of Merchello to 1.2.3
Updated AuthorizeNet to current Merchello version.

Introduced new attribute "GatewayMethodUiAttribute"
Merge pull request #694 from rustyswayne/1.3.0

Updated AuthorizeNet to current Merchello version