move pendulum stuff to next week

--HG--
rename : sessions/2014-07-09/1-pendulums.ipynb => sessions/2014-07-16/1-pendulums.ipynb
rename : sessions/2014-07-09/Measurement_for python.docx => sessions/2014-07-16/Measurement_for python.docx
rename : sessions/2014-07-09/data01.txt => sessions/2014-07-16/data01.txt
rename : sessions/2014-07-09/data02.txt => sessions/2014-07-16/data02.txt
rename : sessions/2014-07-09/data03.txt => sessions/2014-07-16/data03.txt
pandas notebook

--HG--
extra : amend_source : 21a032ebacd29f68905d0ed21264a45753ad9d9b
put data in july 10 folder
plotting notebook
more seaborn stuff