Added image detail csv option and fixes to other csv files

[ajstewart]

This should cover issues #57, #68 and #79.

Image detail csv file looks like:

id, source.ra, source.decl, source.ra_err, source.decl_err, source.f_peak, source.f_peak_err, source.f_int, source.f_int_err

10232, 178.075658834, 53.3509779807, 0.00517741049273, 0.00308543705745, 1.06085945722, 0.0708820350765, 1.0656167259, 0.123321835926 10233, 178.135653416, 54.0263785384, 0.00527066184315, 0.00309103970097, 1.33610262994, 0.0901151069232, 1.34220833043, 0.156797213638