Added a check to throw a python error
when the execution returned from an execute
either has a status of "ProcessFailed"
or has errors.
The wpsUrl to use should be the one defined for this instance
of the class and not the global variable.  If the user
changes this the change otherwise gets missed.
Added a function to cleanly wrap the custom
R bioclim wps function.
Merge pull request #60 from ColinTalbert/master

Creating new pull request for separate branch