updates to the link manager to support UrlOptions and synced tds items
remove sites from solution
improvements to the SitecoreFieldImageMapper
Merge branch 'develop' of github.com:mikeedwards83/Glass.Mapper into develop
fixing TDS
tds project save
Contains key check for Contexts in GetModel.cs

Doing Context.Contexts[ContextName] results in an exception thrown by the dictionary and gives poor feedback about the missing context.
Merge pull request #37 from elwinarens/patch-1

Contains key check for Contexts in GetModel.cs
removed sc upgrade tests from 4.5 build
page editor support only for fields
Merge branch 'develop' of github.com:mikeedwards83/Glass.Mapper into develop

Conflicts:
	Sites/Sitecore/Glass.Mapper.Sites.Sc.Tds/Glass.Mapper.Sites.Sc.Tds.scproj
code first custom field types
fix code first issues with 7.1