Merge pull request #9 from ryanvarley/main-catalogue

two minor corrections
Fixed upper limit mass in Kepler-23.xml. Source:
http://arxiv.org/pdf/1201.5409v1.pdf
KOI-200 updated. KOI-889 added. Source: http://arxiv.org/abs/1304.6002
Merge commit 'afe97ec929403af5459a0aed3d8928de8b3bfe6b' into develop