Merge pull request #9 from MarkWatkins2014/master

minor changes
Tensor product navigation page prettier
Merge branch 'master' of https://github.com/mjd95/lmfdb
added cusp forms and artin reps to tp interface
tensor product interface now works for cusp forms and artin reps
alg coefficients
added direct function for convolving Euler factors
make the new tensor_local_factors() work
Merge branch 'master' of http://github.com/MarkWatkins2014/lmfdb into mine

* 'master' of http://github.com/MarkWatkins2014/lmfdb:
  make the new tensor_local_factors() work
  added direct function for convolving Euler factors
Galois representation from modular form
Merge branch 'galoisreps'
incorporate Mark's tensor product code
Minor change to one precision, change deg1 behavior (test example change)
change comment
change 2 comments and range(1,1+f) to range(f)
adjust tests in gal reps
can get galois rep of artin rep from path now
Merge branch 'mine' of https://github.com/categorie/lmfdb
common semistable primes added
work on sign in tensor product