file: implemented state=touched. Closes GH-4097
file: skip in check_mode if state=touched
file: added file attributes in state=touched
fix examples for with_nested
Merge pull request #4203 from candeira/with_nested

fix documentation examples for with_nested
Merge branch 'feature/file-state-touched' of https://github.com/resmo/ansible into resmo-feature/file-state-touched
Change touched -> touch for new file state, and cleaning up docs
Updating CHANGELOG