System.File: fix mkdir_nothrow()
System.File: add redraw in copy/move
System.File: update document
System.File: use system() instead of :!
OptionParser: add real world examples
Prelude: doc for set_default()
Prelude: doc for input_helper()
Prelude: style fix for input_helper() doc
Prelude: bugfix in doc: it was not for input_helper() but for input_safe()...
Prelude: doc for input_helper()
Data.List: removes uniq() with 2nd argument (it has been obsoleted)
Data.List: changelog for the previous change
Cache: Use sha256() instead of md5.vim
Prelude: doc for set_dictionary_helper
Prelude: making set_dictionary_helper() deprecated (no spec)
Prelude: doc for substitute_path_separator()
Data.List: new function: map_accum()
Process.system() : Fix for vimproc escape
OptionParser: fix typos in doc
Merge pull request #150 from vim-jp/doc.opt.parser

OptionParser: fix typos in doc