Fixing import bugs
Merge pull request #2 from lemurell/master

Fixed imports in main.
import fix for users
first demo of littelmann path plotting with a slider
Merge branch 'master' of github.com:LMFDB/lmfdb into anne

* 'master' of github.com:LMFDB/lmfdb:
  import fix for users
  Fixing import bugs