Summary of commit

* utilities/u-web
  - Add u-markdown-mode for markdown editing support
* utilities/u-web/u-web.el
  - Add u-markdown-mode
* settings/s-modified.el
  - Remove debug-on-error (this was helpful before though, now irritating :|)
* .gitignore
  - Add directive to ignore files ending with tilde "~"
Summary of commit

* utilities/u-web
  - Add u-markdown-mode for markdown editing support
* utilities/u-web/u-web.el
  - Add u-markdown-mode
* settings/s-modified.el
  - Remove debug-on-error (this was helpful before though, now irritating :|)
* .gitignore
  - Add directive to ignore files ending with tilde "~"
* README.md
  - Add markdown-mode
  - Correct description for json-mode (not an IDE but an editing mode)