Update handling of basic options in Drudge
Update handling of basic options in Drudge

1.  Now later property setting is flavoured over options in the
constructor, especially for setting that might have the potential to be
mutated for the same job.  Now only options that in generally would not
be changed at all are advised to be put as constructor option.

2. The default number of partitions can now be given as a simple True to
use the default value from Spark.  This new possibility is set as
default.

tschijnmo/drudge,tschijnmo/drudge,tschijnmo/drudge