Combined all Siegel modular form related code into a package
Dimension formulas for M_{k,j}(Gamma(2)) (j>=2, k>=3) implemented
improve code snippets for Dirichlet character
add test file for characters
replace print statements by logger.debug calls
characters pass all 9 tests
delete obsolete file DirichletCharacter
add small tests for Hecke code
Dimensions for Gamma_2 (using mongodb) implemented
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
Merge branch 'hgm' of https://github.com/pdehaye/lmfdb
Fabien Clery wrote an introductory page for the S_6 module M_{k,j}(Gamma(2))
Implented dimension formulas for M_{k,j}(\Gamma), where \Gamma equals
\Gamma(2), \Gamma_0(2), \Gamma_1(2), Sp(4,Z) (vector valued).
Adding university
Html changes on artin representations
Improve formatting of polynomials in HGM
Making the table of artin reps skinnier.
Fixing up motive pages
Improve HGM search code