gitignore: small updates
run: if repo origin empty, use github
readme: rename to markdown
readme: update markdown syntax
readme: improve readibility of code/path/...
run: remove sed backups (fixes OS X misbehaviour)
readme: add section about module creation and usage
readme: reorder and rename advanced stuff
changelog: update readme [2013.2]
Merge branch 'devel'

* devel:
  changelog: update readme [2013.2]
  readme: reorder and rename advanced stuff
  readme: add section about module creation and usage
  run: remove sed backups (fixes OS X misbehaviour)
  readme: improve readibility of code/path/...
  readme: update markdown syntax
  readme: rename to markdown
  run: if repo origin empty, use github
  gitignore: small updates