add Galois orbit for Dirichlet characters

only for primitive character, computed directly on Conrey labels
Add motivic weight to gaga box
knowl prefix for littelmann path
Merge branch 'master' of git://github.com/LMFDB/lmfdb
Merge pull request #4 from pascalmolin/master

Galois orbit added on Dirichlet character page
Merge pull request #5 from lemurell/master

Adding motivic weight to lady gaga box of L-functions.
Merge branch 'master' of github.com:LMFDB/lmfdb

* 'master' of github.com:LMFDB/lmfdb:
  Add motivic weight to gaga box
  add Galois orbit for Dirichlet characters