Removed a hidden folder
Function generator: Preliminary support added

Prelimiary support for the Rigol DG1022 added.
I want to extend the functionality in the future.
Read more on the device on http://goo.gl/byJvk .
Sine Wave Generation-Method sine() added

Only a test if this works and it does. The sine() method might be replaced or removed later.
Response validation added

Also helpful custom exceptions with helpful error messages
were added and a debug method was added to the code.

An example for the use of the rigolFG module was added.
Readme updated and authorship adjusted.
Readme corrected
Removed unnecessary "project" files
Readme: Include link where this fork is compared to the upstream version.
README clarification: This is made for the DS1052E
Big set of changes:

* Level of abstraction added:
  * RigolScope and RigolFunctionGenerator now
    inherit from the new class RigolDevice,
    which aggregates common methods.
* RigolFunctionGenerator:
  * Method added to load arbitrary waveforms
    into volatile memory. Two static methods
    added to generate example sequences for
    sin and sinc functions.
  * Method added to fetch and clear error
    messages from the function generator.
  * Methods to lock and unlock the knobs of
    the device added.
  * Methods to set the display contrast and
    luminance added.
Fix Debug Level
rigolUI.py should be executable
rigolCli: more Pythonic style
`print("")`  instead of  `print ""`
Add support to the Rigol DS2000 (tested with the DS2202 oscilloscope).
Generalize the Rigol Series to DS1 or DS2, and avoid the specific model strategy.