Merge pull request #17 from jhlch/change-name

Renames pandaspark to sparklingpandas.
Conform to PEP8
Merge pull request #18 from jhlch/pep8

Pep8
Removes empty lists as defaults of functions. Using mutable defaults can cause very strange behavior in Python.
Some progress towards statcounter but its still kind of not done
rebase nicely
Pep8 fixes
Create dict in python 2.6 compatible way.
Add newline at end of pcontexttests.
Merge pull request #24 from jhlch/statscounter

Statscounter
Add groupby support on dataframes to SparkLing pandas. Add a helper method to make a distributed dataframe from a local dataframe (this results in types being reguessed so it is less than ideal), add back in a run-tests script that can yell if SPARK_HOME isn't set (whereas directly using nose just resulted in no output). Add inital code coverage, although we might want to disable it since it only reports on things which run locally and most of our stuff runs remotetly. Remove some dead code from utils. Also update unittest library to unittest2.
Auto pep8