Missing knowls

[JohnCremona]

EDIT: 1 and 2 have been addressed.

We have a script to check that cross-links from one knowl to another are not broken. (The script is about to be updated to work better, it is 2 years old). I will list here some missing ones:

1. mf.modular symbols (referenced in in knowl hecke_algebra.definition)
2. lattice.automorphism_group (in knowl lattice.group_order)
3. Several Siegel mf knwols missing:

Non-existing reference to mf.siegel.weight in knowl mf.siegel.family.sp8z
Non-existing reference to mf.siegel.ikeda in knowl mf.siegel.family.sp8z
Non-existing reference to mf.siegel.miyawaki in knowl mf.siegel.family.sp8z
Non-existing reference to mf.siegel.weight in knowl mf.siegel.family.kp
Non-existing reference to mf.siegel.nonlift in knowl mf.siegel.family.kp
Non-existing reference to mf.siegel.pluriharmonic in knowl mf.siegel.family.gamma0_3
Non-existing reference to mf.siegel.pluriharmonic in knowl mf.siegel.family.gamma0_3_psi_3

[edgarcosta]

I removed the label for classical modular forms. I also don't see the knowl hecke_algebra.definition being used anywhere. I think @sanni85 might have a better idea why and where he wants to use this, and he wants to create the mf.modular symbols knowl.

[AndrewVSutherland]

The missing mf and lattice knows are there now, so this is only relevant for Siegel modular forms, which we know needs a lot of work (so I'm tagging this for 2.0).