Use relative paths when importing files.

This will make imports work with --basepath.
* Convenience csv.json export point for sheets.

  This saves the client from having to parse CSV.
Merge pull request #139 from gagern/134-import-basepath

Use relative paths when importing files.
* 0.20141208.0
Merge branch 'master' into multi

Conflicts:
	manifest.appcache