WebComment: comment submission deadline (CERN)

* Displays the comment submission deadlinem, when present.
  (CERN-specific)

Co-Authored-By: Nikolaos Kasioumis <nikolaos.kasioumis@cern.ch>
4: I102 copyright year is outdated, expected 2014 but got 2011
59:1: E302 expected 2 blank lines, found 1
59: D203 Expected 1 blank line *before* class docstring, found 0
59: D204 Expected 1 blank line *after* class docstring, found 0
64:5: E301 expected 1 blank line, found 0
69:1: E302 expected 2 blank lines, found 1
69: D203 Expected 1 blank line *before* class docstring, found 0
69: D204 Expected 1 blank line *after* class docstring, found 0
74:5: E301 expected 1 blank line, found 0