starting work on crystals and Littelmann paths
changes
fixing url_for stuff ...
first working version
littelmann paths started
Merge branch 'master' of https://github.com/LMFDB/lmfdb
littelmann: ajax demo callback works
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