ui: add the possiblity to get a date config field
Add the method configdate to read a date from configuration. It uses the
util.rawparsedate refactored earlier to support all standard date formats.
# See http://EditorConfig.org for the specification
root = true
[*.py]
indent_size = 4
indent_style = space
trim_trailing_whitespace = true
[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true