fix typo
Merge pull request #196 from cgcgbcbc/fix/nav_menu

fix #187 typo, resolve #193
fix non-field-error duplicate show in model_form
Merge pull request #206 from the5fire/fix-non-field-errors-duplicate

fix non-field-error duplicate show in model_form
fix incorrect form set in EditPatchView
pep8 fix
Merge pull request #209 from the5fire/fix-editpatchview-form-not-work

Fix editpatchview form not work