fixed MDI radius calculation
more fixes for LASCO maps
fix for times for STEREO COR and EUVI data
fixed some of the peek titles
undid comment out in mapbase.py
this patches MDI so that the test MDI data and JPEG2000 files from Helioviewer can be understood by the Map object.
Merge pull request #756 from wafels/check_all_jp2

Reading and dsiplaying of JP2 files