blogs until 2013.09.19
Merge branch 'master' of https://github.com/RapidPM/rapidpm.github.io

# By Marco Ebbinghaus
# Via Marco Ebbinghaus
* 'master' of https://github.com/RapidPM/rapidpm.github.io:
  import of articles from 06/2013
  import of articles from 07/2013
  imported articles from 08/2013
merge
Merge branch 'master' of https://github.com/RapidPM/rapidpm.github.io

# By Marco Ebbinghaus
# Via Marco Ebbinghaus
* 'master' of https://github.com/RapidPM/rapidpm.github.io:
  import of articles from 05/2013
some blogs deleted
cleaning