change pandas import to pd namespace
Added playground notebook
Modified tabs
merge
generated timeseries of T/DPT in the mos_timeseries notebook
added dynamic ylimits on MOS timeseries

slight color modifications

Updated util.mos documentation to use numpydoc format; added concatenate_MOS method from the mos_timeseries notebook to util/mos

Updated readme with dependency and documentation info

Added stub for documentation w/ sphinx

Further documentation tweaks and module compilation
Merge remote-tracking branch 'upstream/master'
added stations