Merge pull request #1 from rusholme/master

Minor name changes to fit IRSA expected format; added attributes for met...
range first survey
use string interpolation for frequency meta
Setup for IPython parallel

* wrapped script in export_od function
* created run_export.py script to submit jobs to IPython parallel
Fixed help comment
removed useless statement
Improved flagging, now using mask 5
close fits file
use healpix_1024
all channels
fixed pointing for S channels

improved formatting
Changed data fields to match IRSA expected format:
Commented out od,ring,dipole
Coverted existing float64 fields to float32
Changed healpix nside back to 2048
Converted utc to float64
Added SSO flag unsigned int field, currently filled with placefiller 0