Added an entry for pash.
Updated entry for pash with github repo links.
 'New version of plugin metadata'
 'New version of plugin metadata'
Added R script executor (pentaho-r-plugin)
 'New version of plugin metadata'
 'New version of plugin metadata'
 'New version of plugin metadata'
 'New version of plugin metadata'
 'New version of plugin metadata'
 'New version of plugin metadata'
 'New version of plugin metadata'
Merge pull request #71 from jbleuel/master

Added R script executor (pentaho-r-plugin)
 'New version of plugin metadata'
 'New version of plugin metadata'
 'New version of plugin metadata'
 'New version of plugin metadata'
 'New version of plugin metadata'
 'New version of plugin metadata'
 'New version of plugin metadata'