Fixes .gitignore

Directories are excluded by providing their name followed by a slash.
Asterisks didn't seem to work for what we need.
Creates SourceBrowser.Site project
Merges the website project into SourceBrowser.Site
Create ReferenceSourceLinkProvider once.
Merge branch 'websiteMerger' of https://github.com/CodeConnect/SourceBrowser into websiteMerger

Conflicts:
	.gitignore