Made a dynamic knowl for displaying information about a global number field, and used it in the artin rep search pages.
Tidy up template for artin rep'n search
Fix elliptic curve L-function plotting a bit.

This should now plot elliptic curve L-functions even when the
precomputed data does not exist locally. If the precomputed data does
exist, though, it will use that instead.
Merge branch 'master' into quickmerge
Remove debug lines
Fixing the failing tests