v1.4.1

New Feature

• Add function util to connect variable node (#143)
  • This util support a function which cuts variable node like Variable.array.
• Add new converter
  • Repeat, partially support (#164)
  • ResizeImage (#164, thx! @syoyo)
  • Swapaxes (#165)
  • Stack, Hstack, Vstack, Dstack (#166, #168)

Improvement

• Add output type check (#145)
• Support group param on Conv/Deconv (#157)
• Fix unpooling error message (#161, thx! @syoyo)
• Change building computational graph, stop using backward with FunctionHook (#162)
  • This reduces calculation cost of exporting

Bug fix

• Fix import order (#151)
• Fix to manage each var is renamed or not (#155)
  • When use output_names option, an output generated by intermediate node is not renamed to "function node name" before this PR.
• desable -> disable spelling correction (#160, thx! @syoyo)
• Fix orphan node check included Constant (#159)