Added helper routines to rrPlugins.py and added new example

Added helper routines to rrPlugins.py and DataSeries, also added new
example that shows of rrPlugins.py changes in rrCreateNoisyDataShort.py
Bumped the version number of rrPlugins.py to 0.6.1
Added writeDataSeries and readDataSeries to rrPlugins.py
Updated comments in rrCreateNoisyDataShort.py
Add rows, cols and getColumnHeaders to DataSeries class
Added methods to get plugin metadata
Variety of changes, see description

Added overloaded DataSeries constructor to allow creating of empty
DataSeries object
Add getElement()
Add stub for setElement() because roadRunner side is not implemented.
Added first help to rrPlugins
Merge remote-tracking branch 'remotes/andy/roadRunnerSauro' into myDevelop

Conflicts:
	libplugins/wrappers/Python/rrPlugins.py