Added a ".." within the file browsing repo

Closes #73
Created a handler for CSS.

Almost closes the issue, ref #79, but now I just have
To remove some of the CSS code in webui.go
Removed all the CSS in webui.go references.

Also, now we don't import io/ioutil!
Woo, smaller packages!

Closes #79
Started moving some things from goove.go to serve.go
Made some huge changes to organization.

Only got dir working so far, now it's time to
move on and work on the rest of the git pages

Also changed Serve.go to serve.go awhile ago,
but it doesn't look like it's taken a change.
Getting more working.

Still sorting out code.
Will edit it a bit later.
Finished the switch to organization.
Optimize some statements and clarify error messages

Also, ran gofmt in some places to fix whitespace problems and
non-alphebetized imports.
Clarify comments and adjust style
Add Luke Evers to the copyright

Thanks for your contributions, @lukevers.
Rename Serve.go to serve.go
Merge branch 'pr.cobwebs' into development

Conflicts:
	grove.go
	webui.go