test.sh: delete all .pyc files first
Fix some urls for Dirichlet character

This is a quick fix to make things work right. I've fixed the manually
written urls in ConductorList.html and OrderList.html by adding the word
Dirichlet.
Merge branch 'master' of github.com:LMFDB/lmfdb into pascal
fix delete *.pyc in test.sh
add tests for character searches and tables
fix urls in dirichlet searches and tables