BibCatalog: Fixed description in ticket_submit

* Fixes the inconsistency in the documentation of ticket_submit, since
  this function returns ticket_id on success.

Signed-off-by: Sebastian Witowski <sebastian.witowski@cern.ch>
1: D205 Blank line missing between one-line summary and description
4: I102 copyright year is outdated, expected 2014 but got 2013
42: D101 Docstring missing
45: D202 No blank lines allowed *after* method docstring, found 1
45: D400 First line should end with '.', not 's'
50:16: E221 multiple spaces before operator
53:90: E502 the backslash is redundant between brackets
53: D202 No blank lines allowed *after* method docstring, found 1
59: D401 First line should be imperative: 'create', not 'creates'
59: D202 No blank lines allowed *after* method docstring, found 1
59: D400 First line should end with '.', not 'e'
85:26: W601 .has_key() is deprecated, use 'in'
98: D202 No blank lines allowed *after* method docstring, found 1
98: D400 First line should end with '.', not 'd'
102:16: E221 multiple spaces before operator
109:5: E303 too many blank lines (2)
109: D202 No blank lines allowed *after* method docstring, found 1
109: D400 First line should end with '.', not 'r'
113:16: E221 multiple spaces before operator
119: D202 No blank lines allowed *after* method docstring, found 1
119: D400 First line should end with '.', not 'd'
123:16: E221 multiple spaces before operator
129: D202 No blank lines allowed *after* method docstring, found 1
134:56: E251 unexpected spaces around keyword / parameter equals
134:58: E251 unexpected spaces around keyword / parameter equals
134: D202 No blank lines allowed *after* method docstring, found 1
139:44: E251 unexpected spaces around keyword / parameter equals
139:46: E251 unexpected spaces around keyword / parameter equals
139: D202 No blank lines allowed *after* method docstring, found 1
139: D400 First line should end with '.', not ')'
162:5: E303 too many blank lines (2)
162: D202 No blank lines allowed *after* method docstring, found 1
162: D400 First line should end with '.', not '6'
165:14: E222 multiple spaces after operator