added Nobeyama Radioheliograph as a lightcurve source
more edits to new NoRH Lightcurve class
bug fix for norh source.
implementing support for NoRH tcx data.
bug fixes for NoRH lightcurves
added a peek() function to NoRH lightcurves.
more fixes for norh lightcurve support.
added user and password that is accepted by NoRH FTP site to base url. Tweaks to peek function.
more tweaks to peek function
changes to lightcurve to allow kwargs to be passed when constructing with date only. Added option to use this feature to select NoRH wavelength.
added tests for NoRH lightcurves
fixed norh tests and removed print statements
one more print statement removed
update to norh docstring
re-ordered import list
tweaks to NoRH lightcurve. Replaced os module with urlparse. Tweaks to the formatting of some data labels
refined method of calculating times from norh header.
refined the construction of NoRH urls
changed header type to OrderedDict
fixed bug causing test fail for norh lightcurve.